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Statement of a problem № 2549

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A pendulum consisting of a ball of mass m is released from the position shown in Fig. 8-2 and strikes a block of mass M. The block slides a distance D before stopping under the action of a steady friction force 0.20Mg Find D if the ball rebounds to an angle of 20°.

Solution:
A pendulum consisting of a ball of mass m is released from the position shown in

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