Question: wall with a massless linear spring with a force constant k = 1 9 9 N / m . Initially the block is at rest,

wall with a massless linear spring with a force constant k=199N/m. Initially the block is at rest, and the spring is in its equilibrium position. A bullet with mass m=6.63g and an unknow horizontal velocity of magnitude v strikes and becomes embedded in the block causing the spring to compress by a maximum distance d=0.902m
What is the speed, in meters per second, of the bullet just before it enters the block?

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