Posted by **Jason** on Friday, January 6, 2012 at 9:24pm.

A(n) 11 g bullet is ﬁred into a(n) 111 g block

of wood at rest on a horizontal surface and

stays inside. After impact, the block slides

14 m before coming to rest.

The acceleration of gravity is 9.8 m/s

If the coeﬃcient of friction between the

surface and the block is 0.7, ﬁnd the speed of

the bullet before impact.

Answer in units of m/s

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