A Uniform Solid Sphere Rolls Down an Incline of Height

question 23

Multiple Choice

A uniform solid sphere rolls down an incline of height 3 m after starting from rest.In order to calculate its speed at the bottom of the incline,one needs to know:

• A)the mass of the sphere.
• B)the radius of the sphere.
• C)the mass and the radius of the sphere.
• D)no more than is given in the problem.

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