A wooden block of mass M is resting on a horizontal surface. The coefficient of frictionis f. One end of a spring with a spring constant k is attached to the block; the other endis attached to a solid wall. The spring is unstretched. A bullet of mass m hits the blockand embeds in it. Find the velocity of the bullet before impact in terms of themaximum compression x of the spring and M, k, g, and f.4.

mass of the block is M coefficient of friction is f the spring constant is k mass of the bullet is m…

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