Question: A solid sphere of mass m and radius r rolls without slipping along the track shown in Figure P10.79. It starts from rest with the

A solid sphere of mass m and radius r rolls without slipping along the track shown in Figure P10.79. It starts from rest with the lowest point of the sphere at height h above the bottom of the loop of radius R, much larger than r.
(a) What is the minimum value of h (in terms of R) such that the sphere completes the loop?
(b) What are the force components on the sphere at the point P if h = 3R?

A solid sphere of mass m and radius

Figure P10.79

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