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Physics Instructor
 Birthday 04/16/1973
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A hollow sphere, solid sphere, and thin hoop are simultaneously released from rest at the top of an #incline. Which will reach the bottom first? Assume all objects are of uniform density. #RollingWithoutSlipping Want Lecture Notes? This is an AP Physics 1 Topic. Content Times: 0:12 The problem 0:46 #ConservationOfEnergy 2:22 General solution 3:55 The order of the objects 5:20 The demonstration Multilingual? Please help translate Flipping Physics videos! Previous Video: Rolling Acceleration Down an Incline Please support me on Patreon! Th

 rolling without slipping
 incline acceleration
 (and 3 more)

Example: Determine the #Acceleration of a uniform, solid cylinder #RollingWithoutSlipping down an #Incline with incline angle θ. The rotational inertia of a uniform, solid cylinder about its long cylindrical axis is ½MR^2. Assume the cylinder starts from rest. Want Lecture Notes? This is an AP Physics 1 Topic. Content Times: 0:07 The problem 0:43 #ConservationOfEnergy 2:32 Rolling without Slipping 3:32 Displacement and height 5:12 Understanding our solution 6:16 Demonstrating our answer Next Video: Which Will Be First? (Rolling Down an Incline) Multilingual? Please h

 rotational kinetic energy
 conservation of energy
 (and 3 more)

Rolling without Slipping is demonstrated and the equation for velocity of the center of mass is derived. A cycloid is demonstrated. Kinetic energy, distance, and acceleration of rolling without slipping is discussed. Want Lecture Notes? This is an AP Physics 1 Topic. Content Times: 0:06 #RollingWithoutSlipping 0:28 #Cycloid 1:15 Translation and Rotational 3:13 Center of Mass Velocity 4:10 Resultant Velocity 4:37 Kinetic Energy 4:58 Distance and Acceleration Next Video: Rolling Acceleration Down an Incline Multilingual? Please help translate Flipping Physics videos!

 cycloid
 kinetic energy of rolling without slipping
 (and 2 more)

Example: A 0.300 kg mass rests on a 0.395 m long, 0.764 kg, uniform wooden plank supported by a string as shown in the figure. If the mass is 0.274 m from the wall and the angle between the string and the plank is 32.1°, (a) What is the force of tension in the string? and (b) What is the normal force from the wall? Want Lecture Notes? This is an AP Physics 1 Topic. Content Times: 0:07 The problem 1:17 The free body diagram 3:45 Net torque 5:41 Substituting in numbers 6:53 Net force 8:02 The demonstration Next Video: Rolling Without Slipping Introduction and Demonstrations
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 rotational equilibrium
 torque
 (and 3 more)

Example: Mass 1 and mass 2 hang from either side of a frictionless #pulley with #rotationalInertia, I, and radius, R. What is the angular acceleration of the pulley? Use #ConservationOfEnergy Want Lecture Notes? This is an AP Physics 1 Topic. Content Times: 0:07 The problem 1:01 Conservation of Energy 2:29 The mechanical energies 4:07 Solving the problem 5:57 Using arc length Next Video: Torque  Mass on Plank with String Multilingual? Please help translate Flipping Physics videos! Previous Video: 2 Masses on a Pulley  Torque Demonstration Please support me

 demonstration
 rotational kinetic energy
 (and 3 more)

Example: 0.100 kg and 0.200 kg masses hang from either side of a frictionless #Pulley with a rotational inertia of 0.0137 kg·m^2 and radius of 0.0385 m. (a) What is the #AngularAcceleration of the pulley? (b) What is the #TensionForce in each string? Want Lecture Notes? This is an AP Physics 1 Topic. Content Times: 0:08 The problem 1:29 The free body diagrams 2:51 Net torque on the pulley 4:28 Net forces on both masses 6:49 Tangentail acceleration 7:31 Solving for acceleration 8:55 Measuring acceleration 10:16 Solving for Tension 12:29 2 incorrect solutions Next Vid

 example
 demonstration
 (and 3 more)

We use integrals to derive the #rotationalinertia of a uniform, long, thin rod. And we demonstrate our answer is correct using a Rotational Inertia Demonstrator. Want Lecture Notes? This is an AP Physics 😄 Mechanics Topic. Content Times: 0:15 Rotational Inertia 0:42 Linear Mass Density 1:51 About Center of Mass 3:02 About an End 4:27 Rotational Inertia Demonstrator (RID) 6:09 About Center of RID 7:03 Comparing our answers 7:43 Demonstrating our answer Next Video: 2 Masses on a Pulley  Torque Demonstration Multilingual? Please help translate Flipping Physics

We predict and measure the force of tension acting on a pulley while the system is at rest and accelerating. #PulleyTensionForce Want Lecture Notes? This is an AP Physics 1 Topic. Content Times: 0:20 The data 0:45 Review 1:15 Tension while at rest 2:45 Accelerating tension Next Video: Using Integrals to Derive Rotational Inertia of a Long, Thin Rod with Demonstration Multilingual? Please help translate Flipping Physics videos! Previous Video: Graphing the Rotational Inertia of an Irregular Shape Please support me on Patreon! Thank you to Christopher Becke

 example
 demonstration

(and 4 more)
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We determine what data to collect to create a graph with rotational inertia as the slope of the bestfit line. #RotationalInertia  Then we collect the data and determine the rotational inertia of an irregular shape. Want Lecture Notes? This is an AP Physics 1 Topic. Content Times: 0:11 The problem 0:46 Free Body Diagram 1:31 Net Torque 3:01 Trial #1 3:52 Angular Acceleration 5:20 12 Trials and Graph 6:29 Deriving Units Next Video: How the Force of Tension on a Pulley Changes with Acceleration Multilingual? Please help translate Flipping Physics videos! Previo

 rotational form of newtons second law
 demonstration
 (and 3 more)

Example: What is the closest to the end of a 93 g uniform meterstick you can place a 200.0 g object and have the system stay balanced? The meterstick is supported at the 20.0 cm and 80.0 cm marks. Want Lecture Notes? This is an AP Physics 1 Topic. Content Times: 0:03 A scaffold 0:33 The problem 1:28 Free body diagram 2:06 Net torque 3:34 Force Normal demo 4:28 Solving the problem 6:17 Testing our answer Next Video: Graphing the Rotational Inertia of an Irregular Shape Multilingual? Please help translate Flipping Physics videos! Previous Video: Placing the Fulc

 demonstration
 painter on a scaffold
 (and 3 more)

Example: A 200.0 g mass is placed at the 20.0 cm mark on a uniform 93 g meterstick. A 100.0 g mass is placed at the 90.0 cm mark. Where on the meterstick should the fulcrum be placed to balance the system? Want Lecture Notes? This is an AP Physics 1 Topic. Content Times: 0:01 Seesaw 0:33 The problem 1:28 The fulcrum 2:14 Free body diagram 2:38 Net force 3:35 Net torque 5:49 Combining equations 7:11 Testing our answer 8:11 Alternate solution Next Video: Painter on a Scaffold  Don't Fall Off!! Multilingual? Please help translate Flipping Physics videos! Pre

 example problem
 fulcrum
 (and 4 more)

A uniform 0.093 kg meterstick is supported at the 15 cm and 92 cm marks. When a 0.250 kg object is placed at the 6.0 cm mark, what are the magnitudes of the forces supporting the meterstick? Want Lecture Notes? This is an AP Physics 1 Topic. Content Times: 0:07 The problem 1:35 Summing the forces 2:55 Summing the torques 5:17 Combining equations 6:04 Torque distances 7:14 The units!! 8:20 Finding Force Normal 1 9:26 Testing our answers Next Video: Placing the Fulcrum on a Seesaw Multilingual? Please help translate Flipping Physics videos! Previous Video: Rot

 jee
 rotational equlibirum
 (and 5 more)

An introduction to Rotational Equilibrium with a review of Translational Equilibrium and demonstrations. Wait there’s more … Static Equilibrium! Want Lecture Notes? This is an AP Physics 1 Topic. Content Times: 0:07 Reviewing Translational Equilibrium 1:21 Visualizing Translational Equilibrium 2:07 Rotational Equilibrium Introduction 3:09 Visualizing Rotational Equilibrium 4:22 Static Equilibrium Next Video: Introductory Rotational Equilibrium Problem Multilingual? Please help translate Flipping Physics videos! Previous Video: (2 of 2) Measuring the Rotational Ine

 ap physics c
 ap physics 1
 (and 8 more)

1) Calculating if our answer makes sense. 2) Why can’t we sum the torques on everything? 3) Finding the force of tension. Want Lecture Notes? This is an AP Physics 1 Topic. Content Times: 0:01 Reviewing from last time 1:08 Does it make sense? 2:41 Calculating the fraction 3:41 Sum the torques on everything? 6:07 Solving for force of tension 8:24 Testing our answer Next Video: Rotational Equilibrium Introduction (and Static Equilibrium too!!) Multilingual? Please help translate Flipping Physics videos! Previous Video: (1 of 2) Measuring the Rotational Inertia of

That’s right, we actually measure the rotational inertia of a bicycle wheel. How cool is that? Want Lecture Notes? This is an AP Physics 1 Topic. Content Times: 0:10 Basic setup 0:44 Free Body Diagram 1:30 Finding net torque 3:10 Finding force of tension 4:51 Linear and angular acceleration 5:42 Uniformly angularly accelerated motion 7:00 What do we need to know? 7:35 Solving the problem Next Video: (2 of 2) Measuring the Rotational Inertia of a Bike Wheel Multilingual? Please help translate Flipping Physics videos! Previous Video: Introductory Rotational Fo
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