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Problem 4 A hoop and a solid disk both with Mass (M=0.5 kg) and radius (R=...

Problem 4

A hoop and a solid disk both with Mass (M=0.5 kg) and radius (R= 0.5 m) are placed at the top of an incline at height (h= 10.0 m). The objects are released from rest and rolls down without slipping.

a) The solid disk reaches to the bottom of the inclined plane before the hoop. explain why?

b) Calculate the rotational inertia (moment of inertia) for the hoop.

c) Calculate the rotational inertia (moment of inertia) for the solid disk.

d)Calculate the potential energy of both object before they were released from

the top the incline.

e)Use conservation of energy to find the velocity of the hoop at the bottom the incline.

f) Use conservation of energy to find the velocity of the solid desk at the bottom the incline.

g) which one has more velocity? Does your answers (for e and f) prove your response to part a. ?

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