Posted by Dee on Friday, January 20, 2012 at 11:38pm.
Conservation of momentum tells you the velocity V' of the block and embedded bullet before the spring gets compressed.
0.010 kg*300 m/s = V' * (2.01 kg)
Solve for V'.
Energy is conserved during spring compression.
(1/2) k X^2 = (1/2) (M+m) V'^2
k is the spring force constant. M is block mass. m is bullet mass.
Solve for spring compression X
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