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September 20, 2014

Homework Help: physics help 4 please!

Posted by kelsey on Saturday, October 18, 2008 at 2:26am.

A solid disk (mass = 1 kg, R=0.5 m) is rolling across a table with a translational speed of 9 m/s.

a.) What must the angular speed of the disk be?
? rad/s
b.) What is the rotational KE of the disk?
? J
c.) What is the total KE of the disk?
? J
d.) The disk then rolls up a hill of height 2 m, where the ground again levels out. Find the translational and rotational speeds now.
? m/s
? rad/s

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