Coin on Rotating LP: Application Experiment

Aim

To measure the coefficient of friction by observing where a coin placed on a rotating LP slips, and test this measurement against another method.

Prior Knowledge

• Circular motion.
• Newton's Laws
• Concepts about friction

Description of the Experiment

A dime is placed at various distances from the centre of the disk until it slips. Use the data in the video to figure out the coefficient of friction between the disk and the coin. The disk is then slowly raised so that it forms a larger and larger angle with the horizontal until the coin slips. Use this method to test whether your measurement of the coefficient of friction in the first method was good or not.

	Frame rate: 15fps Size: 480 X 360 File Size: 1.00Mb
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