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A. What is the moment of inertia of a solid iron sphere 20 inches in diameter...

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Physics

A. What is the moment of inertia of a solid iron sphere 20inches in diameter about an axis passing through the sphere halfway from its center to the surface (you will have to look up itsdensity)? If the sphere rolls down an incline plane that makes anangle 20 degrees with the horizontal, what will be itsacceleration?

B. Derive the formula for acceleration of a circular disk thatrolls down an inclined plane that makes an angle θ with thehorizontal. (draw a diagram and say in words what you aredoing)

Answer & Explanation Solved by verified expert
4.3 Ratings (897 Votes)
A Let M be the mass of the sphere and R be its radiusR 20 inches 0508 mDensity of iron 7000    See Answer
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