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If you hold your feet flat or point them, does it change how far you slide. This video shows the answer and explains why using the concept of drag force. Content Times: 0:26 Showing the two foot positions 0:57 Defining aerodynamic 1:41 Defining the Drag Force 2:32 A closer look at the cross sectional area 4:04 Showing the answer 5:05 Comparing splashes 5:43 A second demonstration 6:22 Many thanks Multilingual? [url="http://www.flippingphysics.com/translate.html"]Please help translate Flipping Physics videos![/url] Another Drag Force Video: [url="http://www.flippingphysics.com/th

Name: Do Your Feet Affect How Far You Slide on a Water Slide? Category: Dynamics Date Added: 22 October 2014  01:39 PM Submitter: Flipping Physics Short Description: None Provided If you hold your feet flat or point them, does it change how far you slide. This video shows the answer and explains why using the concept of drag force. Content Times: 0:26 Showing the two foot positions 0:57 Defining aerodynamic 1:41 Defining the Drag Force 2:32 A closer look at the cross sectional area 4:04 Showing the answer 5:05 Comparing splashes 5:43 A second demonstration 6:22 Many thanks

Wearing a helmet is all about impulse, change in momentum and the force of impact. This video illustrates why you should secure your helmet to your head. Thank you very much to Colton and Jean Johnson who said yes when I asked them if I could film myself riding my bike off their dock. Colton also said, â€œIn my 75 years of living, that has got to be the strangest request I have ever received.â€ Thank you also to Chris Palmer and Larry Braak for being my onsite camera operators. Content Times: 0:19 Are you wearing your helmet? 0:53 Riding my bike off the dock into the lake. :) 2:15 The

Name: How to Wear a Helmet a PSA from Flipping Physics Category: Momentum and Collisions Date Added: 18 September 2014  03:36 PM Submitter: Flipping Physics Short Description: None Provided Wearing a helmet is all about impulse, change in momentum and the force of impact. This video illustrates why you should secure your helmet to your head. Thank you very much to Colton and Jean Johnson who said yes when I asked them if I could film myself riding my bike off their dock. Colton also said, â€œIn my 75 years of living, that has got to be the strangest request I have ever received.â€ Than

This is how you include air resistance in projectile motion. It requires the Drag Force and Numerical Modeling (or the Euler Method). It is also very helpful to use a spreadsheet to do the calculations. I prove a statement from a previous projectile motion problem video, "Air resistance decreases the x displacement of the ball by less than 1 cm." Content Times: 0:22 The statement this video proves 1:01 The basic concept of air resistance 1:54 The Free Body Diagram 2:20 The Drag Force Equation 3:13 Information about the Lacrosse Ball 4:03 The Drag Coefficient 4:55 The Density of Air

Name: A Brief Look at the Force of Drag using Numerical Modeling (or The Euler Method) Category: Dynamics Date Added: 22 May 2014  05:01 PM Submitter: Flipping Physics Short Description: None Provided This is how you include air resistance in projectile motion. It requires the Drag Force and Numerical Modeling (or the Euler Method). It is also very helpful to use a spreadsheet to do the calculations. I prove a statement from a previous projectile motion problem video, "Air resistance decreases the x displacement of the ball by less than 1 cm." Content Times: 0:22 The statement this

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 
When taking corners quickly, the biggest worry most drivers should have is slipping and losing control of the car. This happens when a driver takes the corner too fast. The physics of taking a flat corner depends on the equation vmax = Sqrt(mu*r*g). mu, the coefficient of static friction, is constant, as is g, the acceleration due to gravity. Therefore, a driver trying to take a corner as quickly as possible would like to make the radius of the turn as large as possible to allow for a higher vmax, keeping his car from slipping at higher speeds. But how? Doesn't a road have a defined radius?

 force
 centripetal

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