A 12.5 g bullet is fired into and embeds itself in a 2.47, Ask an Expert

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A 12.5 g bullet is fired into and embeds itself in a 2.47 kg block attached to a spring with a spring constant of 21.2 N/m and whose mass is negligible. How far is the spring compressed if the bullet has a speed of 325 m/s just before it strikes the block, and the block slides on a frictionless surface?

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