A ball of mass m=0.8kg is tied to the end of a string of length L=0.2m and relea

Question

A ball of mass m=0.8kg is tied to the end of a string of length L=0.2m and released when the string is held horizontally. Only gravity does work on the ball as it follows a circular path (tension is perpendicular to the direction of motion and so does work zero). When the ball reaches its lowest point, it collides perfectly elastically with a block of mass M=0.5kg at rest. The coefficient of friction between the block and ground is mk=0.8. How far will the block slide to the right before coming to rest? A. 0.047m B. 0.095m C. 0.189m D. 0.379m

Explanation / Answer

c

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