An elastic spherical ball of mass M and radius a moving with velocity v strikes a rigid
Question:
(a) The ball is reflected at an angle Ф to the normal where |tan Ф — tan Ф| = 2μ,
(b) The angular velocity of the rebounding ball changes by an amount
5μv/a cos θ
You may assume that the component of velocity perpendicular to the surface is reversed in direction without change of magnitude.
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