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A hollow sphere of radius 0.35 m, with rotational inertia I = 0.032 kg m2 about a line through its center of mass, rolls without slipping up a surface inclined at 33° to the horizontal. At a certain initial position, the sphere's total kinetic energy is 60 J.

(a) How much of this initial kinetic energy is rotational?

(b) What is the speed of the center of mass of the sphere at the initial position? m/s Now, the sphere moves 1.0 m up the incline from its initial position.

(d) What is the speed of its center of mass now?

m/s

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Category:- Physics
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