In: Physics
A 0.004 kg bullet is fired into a 0.200 kg wooden block at rest on a horizontal surface. After impact, the embedded bullet block slides 8.00 m before coming to rest. If the coefficient of friction is 0.400, what is the speed of the bullet before impact? a) 96 m /s b) 112 m/s c) 286 m/s d) 404 m/s e) 812 m/s