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A disc, which has a mass of 12.0 kg and a radius of 65.0 cm., sits...

A disc, which has a mass of 12.0 kg and a radius of 65.0 cm., sits at the top of an inclined plane, which is 8.40 meters long and 1.50 meters high. At t = 0 the disc is released and is allowed to roll to the bottom of the incline without slipping.

a. What is the GPE of this disc as it sits at the top of the incline?

b. What will be the total kinetic energy of this disc as it reaches the bottom of the incline?

c. What will be the linear velocity of this disc when it reaches the bottom of the inclined plane?

d. What would the linear velocity be if the disc is replaced by a sphere?

e. What would the velocity be if the object was a ring?

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