physics

A steel ball of mass m=5 g is moving at a speed of 250 m/s toward a large mass M=2.2 kg which is connected to a relaxed spring, as shown below. When the ball reaches the large mass it collides and bounces off without losing any kinetic energy. The large mass is connected to a spring of spring constant k=53 N/m and after the collision the large mass moves to the left, compressing the spring. The mass slides on a frictional surface with kinetic coefficient of friction 0.80. Find the distance d by which the spring is compressed when the large mass comes briefly to rest. d=?

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asked by joan

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