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Rotational Form of Newton's Second Law  Introduction
Flipping Physics posted a video in Rotational Motion
A very basic introduction to the rotational form of Newton’s Second Law of Motion by way of its translational form. Want Lecture Notes? This is an AP Physics 1 Topic. Content Times: 0:15 Newton’s Second Law 0:48 The rotational form 1:59 Using the equation 3:13 In words Next Video: Demonstrating Rotational Inertia (or Moment of Inertia) Multilingual? Please help translate Flipping Physics videos! Previous Video: Net Torque on a Door Problem Please support me on Patreon! Thank you to Scott Carter, Christopher Becke, Jonathan Everett, and Faiaz Rahman for being my Quality Control Team for this video.
 newtons 2nd law
 newtons second law

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Three people push on a door. We determine the net torque. Want Lecture Notes? This is an AP Physics 1 Topic. Content Times: 0:07 Translating the problem 2:00 Solving the problem 3:07 Torque Direction! Next Video: Rotational Form of Newton's Second Law  Introduction Multilingual? Please help translate Flipping Physics videos! Previous Video: The Right Hand Rule for Torque Please support me on Patreon! Thank you to Christopher Becke and Scott Carter for being my Quality Control Team for this video.

The right hand rule for the direction of torque is described and demonstrated six times. Want Lecture Notes? Content Times: 0:26 The Right Hand Rule 0:47 Demonstration #1 1:27 Demonstration #2 2:37 Demonstration #3 3:20 Demonstration #4 3:40 Demonstration #5 4:24 Demonstration #6 Next Video: Net Torque on a Door Problem Multilingual? Please help translate Flipping Physics videos! Previous Video: An Introductory Torque Wrench Problem Please support me on Patreon! Thank you to Christopher Becke and Scott Carter for being my Quality Control Team for this video.

 demonstration
 couterclockwise

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A problem involving forces on a wrench is used to determine the torque exerted by the wrench. A “cheater pipe” is also added. Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:07 Translating the problem 2:35 Solving the problem 3:06 Arguing about the angle 4:44 Adding a “Part B” 5:40 Demonstrating the “cheater pipe” Next Video: The Right Hand Rule for Torque Multilingual? Please help translate Flipping Physics videos! Previous Video: Torque Introduction Please support me on Patreon! Thank you to Christopher Becke and Scott Carter for being my Quality Control Team for this video.

 cheater bar
 cheater pipe

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Translational and Rotational motion are demonstrated and reviewed. Torque is introduced via the equation and several door opening demonstrations. Moment arm or lever arm is defined and illustrated. Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:06 Translational and Rotational Motion 0:58 Defining Torque 1:53 The torque equation 2:59 Door example #1 4:56 Door example #2 6:11 Door example #3 6:58 Defining moment arm 9:18 Torque units Next Video: An Introductory Torque Wrench Problem Multilingual? Please help translate Flipping Physics videos! Previous Video: Moments of Inertia of Rigid Objects with Shape Please support me on Patreon! Thank you to Christopher Becke and Scott Carter for being my Quality Control Team for this video.

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AP Physics C: Rotational Dynamics Review  1 of 2 (Mechanics)
Flipping Physics posted a video in Rotation
Calculus based review of moment of inertia for a system of particles and a rigid object with shape, the derivation of rotational kinetic energy, derivations of the following moments of inertia: Uniform Thin Hoop about is Cylindrical Axis, Uniform Rigid Rod about its Center of Mass and about one end, also the parallel axis theorem, torque, the rotational form of Newton’s Second Law, pulleys with mass and the force of tension, the Right Hand Rule for direction of torque, and rolling with and without slipping. For the calculus based AP Physics C mechanics exam. Want Lecture Notes? Content Times: 0:10 Moment of Inertia of a system of particles derivation 1:46 Rotational Kinetic Energy derivation 2:49 Moment of Inertia of a rigid object with shape derivation 3:52 Moment of Inertia of a Uniform Thin Hoop about its Cylindrical Axis derivation 5:31 Moment of Inertia of a Uniform Rigid Rod about its Center of Mass derivation 8:02 Moment of Inertia of a Uniform Rigid Rod about one end derivation 9:16 The Parallel Axis Theorem 11:29 Torque 12:21 Simple torque diagram 14:14 Rotational form of Newton’s Second Law 15:07 Pulleys with mass and the Force of Tension 15:33 The Right Hand Rule the for the direction of torque 16:56 Rolling without Slipping 17:40 Rolling with Slipping Multilingual? Please help translate Flipping Physics videos! AP Physics C Review Website Next Video: Review of Rotational Dynamics for AP Physics C: Mechanics  Part 2 of 2 Previous Video: AP Physics C: Rotational Kinematics Review (Mechanics) Please support me on Patreon! Thank you to Sawdog for being my Quality Control individual for this video.
 rolling without slipping
 moment of inertia

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Tagged with:
 rolling without slipping
 moment of inertia
 system of particles
 objects with shape
 rigid
 rotational kinetic energy
 derivation
 uniform thin hoop
 rigid rod
 cylindrical axis
 center of mass
 end
 parallel axis theorem
 rotational
 torque
 form
 newtons second law
 pulley
 force of tension
 right hand rule
 torque direction
 rolling with slipping

AP Physics C: Rotational Dynamics Review  2 of 2 (Mechanics)
Flipping Physics posted a video in Angular Momentum
Calculus based review of the cross product torque equation, how to do a unit vector cross product problem, rotational equilibrium, the rotational form of Newton’s second law, the angular momentum of a particle and of a rigid object with shape, the derivation of conservation of angular momentum, and a conservation of angular momentum example problem which reviews a lot of the pieces necessary to understand conservation of angular momentum. For the calculus based AP Physics C mechanics exam. Want Lecture Notes? Content Times: 0:15 The cross product torque equation 1:10 Unit vector cross product example problem 3:32 Rotational equilibrium definition 4:55 Rotational form of Newton’s second law 5:37 Angular momentum of a particle 7:08 Angular momentum of a rigid object with shape 7:49 Conservation of angular momentum derivation 8:57 Conservation of angular momentum example problem 10:57 Visualizing the problem 12:04 The conservation of angular momentum equation 12:54 Solving for the constant value of the variable y. 14:04 Substituting in known values 15:38 Does our variable answer make sense? Multilingual? Please help translate Flipping Physics videos! AP Physics C Review Website Next Video: AP Physics C: Rotational vs. Linear Review (Mechanics) Previous Video: AP Physics C: Rotational Dynamics Review  1 of 2 (Mechanics) Please support me on Patreon! Thank you to Sawdog for being my Quality Control individual for this video.
 derivation
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Calculus based review and comparison of the linear and rotational equations which are in the AP Physics C mechanics curriculum. Topics include: displacement, velocity, acceleration, uniformly accelerated motion, uniformly angularly accelerated motion, mass, momentum of inertia, kinetic energy, Newton’s second law, force, torque, power, and momentum. Want Lecture Notes? Content Times: 0:12 Displacement 038 Velocity 1:08 Acceleration 1:33 Uniformly Accelerated Motion 2:15 Uniformly Angularly Accelerated Motion 2:34 Mass 3:19 Kinetic Energy 3:44 Newton’s Second Law 4:18 Force and Torque 5:12 Power 5:45 Momentum Multilingual? Please help translate Flipping Physics videos! AP Physics C Review Website Next Video: AP Physics C: Universal Gravitation Review (Mechanics) Previous Video: AP Physics C: Rotational Dynamics Review  2 of 2 (Mechanics) Please support me on Patreon! Thank you to Sawdog for being my Quality Control individual for this video.

Video Discussion: AP Physics C: Rotational vs. Linear Review (Mechanics)
Flipping Physics posted a topic in Video Discussions
Name: AP Physics C: Rotational vs. Linear Review (Mechanics) Category: Rotational Motion Date Added: 20170428 Submitter: Flipping Physics Calculus based review and comparison of the linear and rotational equations which are in the AP Physics C mechanics curriculum. Topics include: displacement, velocity, acceleration, uniformly accelerated motion, uniformly angularly accelerated motion, mass, momentum of inertia, kinetic energy, Newton’s second law, force, torque, power, and momentum. Want Lecture Notes? Content Times: 0:12 Displacement 038 Velocity 1:08 Acceleration 1:33 Uniformly Accelerated Motion 2:15 Uniformly Angularly Accelerated Motion 2:34 Mass 3:19 Kinetic Energy 3:44 Newton’s Second Law 4:18 Force and Torque 5:12 Power 5:45 Momentum Multilingual? Please help translate Flipping Physics videos! AP Physics C Review Website Next Video: AP Physics C: Universal Gravitation Review (Mechanics) Previous Video: AP Physics C: Rotational Dynamics Review  2 of 2 (Mechanics) Please support me on Patreon! Thank you to Sawdog for being my Quality Control individual for this video. AP Physics C: Rotational vs. Linear Review (Mechanics) 
Video Discussion: AP Physics C: Rotational Dynamics Review  2 of 2 (Mechanics)
Flipping Physics posted a topic in Video Discussions
Name: AP Physics C: Rotational Dynamics Review  2 of 2 (Mechanics) Category: Rotational Motion Date Added: 20170428 Submitter: Flipping Physics Calculus based review of the cross product torque equation, how to do a unit vector cross product problem, rotational equilibrium, the rotational form of Newton’s second law, the angular momentum of a particle and of a rigid object with shape, the derivation of conservation of angular momentum, and a conservation of angular momentum example problem which reviews a lot of the pieces necessary to understand conservation of angular momentum. For the calculus based AP Physics C mechanics exam. Want Lecture Notes? Content Times: 0:15 The cross product torque equation 1:10 Unit vector cross product example problem 3:32 Rotational equilibrium definition 4:55 Rotational form of Newton’s second law 5:37 Angular momentum of a particle 7:08 Angular momentum of a rigid object with shape 7:49 Conservation of angular momentum derivation 8:57 Conservation of angular momentum example problem 10:57 Visualizing the problem 12:04 The conservation of angular momentum equation 12:54 Solving for the constant value of the variable y. 14:04 Substituting in known values 15:38 Does our variable answer make sense? Multilingual? Please help translate Flipping Physics videos! AP Physics C Review Website Next Video: AP Physics C: Rotational vs. Linear Review (Mechanics) Previous Video: AP Physics C: Rotational Dynamics Review  1 of 2 (Mechanics) Please support me on Patreon! Thank you to Sawdog for being my Quality Control individual for this video. AP Physics C: Rotational Dynamics Review  2 of 2 (Mechanics)
 derivation
 cross product
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Video Discussion: AP Physics C: Rotational Dynamics Review  1 of 2 (Mechanics)
Flipping Physics posted a topic in Video Discussions
Name: AP Physics C: Rotational Dynamics Review  1 of 2 (Mechanics) Category: Rotational Motion Date Added: 20170428 Submitter: Flipping Physics Calculus based review of moment of inertia for a system of particles and a rigid object with shape, the derivation of rotational kinetic energy, derivations of the following moments of inertia: Uniform Thin Hoop about is Cylindrical Axis, Uniform Rigid Rod about its Center of Mass and about one end, also the parallel axis theorem, torque, the rotational form of Newton’s Second Law, pulleys with mass and the force of tension, the Right Hand Rule for direction of torque, and rolling with and without slipping. For the calculus based AP Physics C mechanics exam. Want Lecture Notes? Content Times: 0:10 Moment of Inertia of a system of particles derivation 1:46 Rotational Kinetic Energy derivation 2:49 Moment of Inertia of a rigid object with shape derivation 3:52 Moment of Inertia of a Uniform Thin Hoop about its Cylindrical Axis derivation 5:31 Moment of Inertia of a Uniform Rigid Rod about its Center of Mass derivation 8:02 Moment of Inertia of a Uniform Rigid Rod about one end derivation 9:16 The Parallel Axis Theorem 11:29 Torque 12:21 Simple torque diagram 14:14 Rotational form of Newton’s Second Law 15:07 Pulleys with mass and the Force of Tension 15:33 The Right Hand Rule the for the direction of torque 16:56 Rolling without Slipping 17:40 Rolling with Slipping Multilingual? Please help translate Flipping Physics videos! AP Physics C Review Website Next Video: Review of Rotational Dynamics for AP Physics C: Mechanics  Part 2 of 2 Previous Video: AP Physics C: Rotational Kinematics Review (Mechanics) Please support me on Patreon! Thank you to Sawdog for being my Quality Control individual for this video. AP Physics C: Rotational Dynamics Review  1 of 2 (Mechanics) 1 reply

 rolling without slipping
 moment of inertia

(and 20 more)
Tagged with:
 rolling without slipping
 moment of inertia
 system of particles
 objects with shape
 rigid
 rotational kinetic energy
 derivation
 uniform thin hoop
 rigid rod
 cylindrical axis
 center of mass
 end
 parallel axis theorem
 rotational
 torque
 form
 newtons second law
 pulley
 force of tension
 right hand rule
 torque direction
 rolling with slipping

How many barbells plates can you stack on only one side of a bar before it topples to one side? Find out how in this video about torques, angular momentum, rotational inertia, and how to calculate the maximum allowable weight on one side of an Olympic barbell before it beings to flip!

Name: Torques in the Weight Room Category: Rotational Motion Date Added: 20151006 Submitter: DHeadly How many barbells plates can you stack on only one side of a bar before it topples to one side? Find out how in this video about torques, angular momentum, rotational inertia, and how to calculate the maximum allowable weight on one side of an Olympic barbell before it beings to flip! Torques in the Weight Room

Name: Dancing THandle in ZeroG Category: Rotational Motion Date Added: 20150826 Submitter: FizziksGuy HD video of the installation handle on SpaceDRUMS in free floating rotation showing a bistable state due to intermediate moments of inertia. Dancing THandle in ZeroG

HD video of the installation handle on SpaceDRUMS in free floating rotation showing a bistable state due to intermediate moments of inertia.

Review of the Rotational Dynamics topics covered in the AP Physics 1 curriculum. Want [url="http://www.flippingphysics.com/ap1rotationaldynamicsreview.html"]Lecture Notes[/url]? Content Times: 0:14 Torque 1:30 Moment Arm or Lever Arm 2:55 Net Torque 3:37 Moment of Inertia 4:29 Rotational Kinetic Energy 4:54 Rolling without slipping 6:31 Angular Momentum 7:06 Angular Impulse Multilingual? [url="http://www.flippingphysics.com/translate.html"]Please help translate Flipping Physics videos![/url] Next Video: [url="http://www.flippingphysics.com/ap1gravitationreview.html"]AP Physics 1: Universal Gravitation Review[/url] Previous Video: [url="http://www.flippingphysics.com/ap1rotationalkinematicsreview.html"]AP Physics 1: Rotational Kinematics Review[/url] [url="http://http//www.flippingphysics.com/give.html"]1Â¢/minute[/url]

Video Discussion: AP Physics 1: Rotational Dynamics Review
Flipping Physics posted a topic in AP Physics 1/2
Name: AP Physics 1: Rotational Dynamics Review Category: Exam Prep Date Added: 28 March 2015  07:46 PM Submitter: Flipping Physics Short Description: None Provided Review of the Rotational Dynamics topics covered in the AP Physics 1 curriculum. Want View Video 
Video Discussion: The Reality of our First Free Body Diagram
Flipping Physics posted a topic in Video Discussions
Name: The Reality of our First Free Body Diagram Category: Dynamics Date Added: 19 November 2014  02:55 PM Submitter: Flipping Physics Short Description: None Provided The free body diagram we first learn is not entirely accurate. All of the forces are not drawn from the center of mass of the object. Learn why we start this way and, when we get torque, what the free body diagrams will actually look like. Content Times: 0:12 Reviewing the first free body diagram 0:39 A more correct free body diagram 1:22 Comparing this approach to the projectile motion approach 1:52 When we get to torque 2:42 The green screen Multilingual? View Video 
The free body diagram we first learn is not entirely accurate. All of the forces are not drawn from the center of mass of the object. Learn why we start this way and, when we get torque, what the free body diagrams will actually look like. Content Times: 0:12 Reviewing the first free body diagram 0:39 A more correct free body diagram 1:22 Comparing this approach to the projectile motion approach 1:52 When we get to torque 2:42 The green screen Multilingual? [url="http://www.flippingphysics.com/translate.html"]Please help translate Flipping Physics videos![/url] Want [url="http://www.flippingphysics.com/realityoffbd.html"]Lecture Notes?[/url] Next Video: [url="http://www.flippingphysics.com/secondlaw.html"][color=rgb(0,0,0)][font=Helvetica][size=3]Introduction to Newtonâ€™s Second Law of Motion with Example Problem[/size][/font][/color][/url] Previous Video: [url="http://www.flippingphysics.com/freebodydiagrams.html"]Introduction to Free Body Diagrams or Force Diagrams[/url] [url="http://www.flippingphysics.com/give.html"]1Â¢/minute[/url]

Torque: It makes things rotate
pavelow posted a blog entry in Blog Having Nothing to do with Physics
Torque is the tendency of force to rotate something around an axis. Torque helps you turn a doorknob, it makes a car's tires spin, it basically helps a force act in a circle. Applications of torque equations can help solve real world problems. Locations for supports for bridges can be determined by examining the effects of the torque vehicles would cause on a bridge. An engineer looking to efficiently maximize the potential for producing torque in an engine would choose electrical or diesel power over gasoline power to use the fuel effectively. People who would like to easily compare weights without a scale can easily use torque properties to their advantage, specifically with a balance. Putting a weight at each end of a beam and sliding it over a fulcrum until it balances can help determine relative weights of objects by comparing the lengths of sides of the balance. For example, Person A and Person B are on opposite ends of a log, and the log is balanced. The leg extending to Person A is twice as long as the one extending to Person B. because torque is the length of the arm multiplied by the weight of the object, it can be determined that, because the torques balance, Person B has twice the weight of Person A. 
So senior year has finally come to an end and we all are saying goodbye. So I thought I would discuss the physics of senior year. The year has had so much physics enwrapped in it, in and outside the classroom. We got to use physics in physics c (duh), calculus, and technology for those who take these classes. With a basic understanding of physics, these classes became easier to learn and master. Outside the classroom, physics was used by every athlete in the school in some shape or form from lacrosse involving torque, to hockey with rotational motion. But there is so much more. Physics was used every time the students went up and down the stairs, or when we used the computers or cell phones (which of course none of us would ever do). There's when we go to the nurses office and they use the thermometer, or when we do our locker combinations to get our stuff. Physics can even be applied to our work effort. the more energy that we used throughout the year, the less potential energy we had to use. Hence, the moment APs were over, almost the entire class stopped working, using at times only the most minimal of effort. Finally, there was the excitement factor. Like with electromagnetism, the closer we got to the end of the year, the more energetic we got, buzzing with excitement for graduation. On that note, I would like to say good luck to everyone in their future, whether that be in college or high school or whatever it is you do, and to continue with physics and stay nerdy!!!
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Version 1
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Objective: Moment of Inertia by Inquiry Description: Students experimentally determine the moment of inertia of six different objects (2 solid spheres, 2 solid discs, and 2 rings) by rolling them down a ramp. They then compare their experimentally determined values to the theoretical values which they calculate themselves. Equipment: 2 solid spheres 2 solid discs 2 rings (note that these items can be purchased as a group set through lab supply vendors, or you may create your own) stopwatch meter stick protractor string Procedure: Students develop their own procedures for this lab. Note that the students can take one of two paths to determining the moment of inertia of the rolling objects... both result in the same values if derived carefully, and each is a good reinforcement of key concepts students have been studying up to this point in the class.Free


 angular momentum
 torque

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