Question: A slender 5-kg rod is released from rest in the position shown. It is observed that after the rod strikes the vertical surface it rebounds

A slender 5-kg rod is released from rest in the position shown. It is observed that after the rod strikes the vertical surface it rebounds to a horizontal position.

(a) Determine the coefficient of restitution between knob K and the surface.

(b) Show that the same rebound can be expected for any position of knob K. (Neglect the mass of knobK.)

A K 30 I'm 0.8 m B

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