A(n) 8.9g bullet is fired into a(n) 132g block

of wood at rest on a horizontal surface and

stays inside. After impact, the block slides

13m before coming to rest.

The acceleration of gravity is 9.8 m/s^2/

If the coeffcient of friction between the

surface and the block is 0.5, find the speed of

the bullet before impact. Answer in units of

m/s.

For this problem, the only direction I know where to go in is to solve for the force of friction. Because we have the coefficient of friction and the normal force (9.8 * .132kg) the friction force = .6468N. So now where do I go with this?