Massachusetts Institute of Technology
Sign in | Create Account

MIT Physics Demo -- Centrifugal versus Centripetal Motion

A wooden ball is attached to the rim of a spinning wheel. The ball is held in place by a string. When the spring is cut, the ball flies in a straight tangent to the wheel.

In the camera's frame of reference, the ball constantly accelerates around in a circle due to the centripetal force pulling it inwards. When the string is cut, the acceleration stops, and the ball flies away in a straight tangential line. When the string is cut in the rotating frame of reference, a ficticious force (centrifugal force) accelerates the ball.

Comments (2)

Thanks! We used this in homeschool physics. It was a great visual. It would have been a shade better if the person's arm was not in the way on the second view…

Posted over 5 years by Anonymous User

blah blah blah

Posted over 5 years by Anonymous

You need to log in, in order to post comments. If you don’t have an account yet, sign up now!

Created
August 28, 2008 14:21
Category
Tags
License
Creative Commons Attribution-NonCommercial (What is this?)
Additional Files


Viewed
32354 times

More from MIT Department of Physics Technical Services Group

Hero's Engine

Hero's Engine

Added over 3 years ago | 00:01:38 | 20350 views

Bimetallic Strip

Bimetallic Strip

Added over 1 year ago | 00:00:47 | 2826 views

MIT Physics Demo -- Microwave Polarization

MIT Physics Demo -- Microwave Polar...

Added almost 6 years ago | 00:01:14 | 33999 views

DC Motor

DC Motor

Added 1 year ago | 00:01:17 | 1706 views

Strobe of a Falling Ball

Strobe of a Falling Ball

Added over 5 years ago | 00:00:41 | 36866 views

Ripple Tank: Single and Double Slit Diffraction and Interference

Ripple Tank: Single and Double Slit...

Added almost 5 years ago | 00:03:05 | 56730 views