What is the intial speed of the Bullet? [physics].?

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Dizzy

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A bullet of mass 7.00 g is fired horizontally into a wooden block of mass 1.13 kg resting on a horizontal surface. The coefficient of kinetic friction between block and surface is 0.200. The bullet remains embedded in the block, which is observed to slide a distance 0.200 m along the surface before stopping.

What was the initial speed of the bullet?

I've tried it several times, but it keeps telling me I'm wrong.
 
well......this is wrong..buut i want to do this

!=tar get

!---------------------------------------gun
15/100 of a second
 
Aww shit, and I knew how to do this too....These used to be my favorite questions.

I'm sorry about all the crappy answers you got.

http://au.answers.yahoo.com/question/index?qid=20080103074203AAw9ojx

This might help though!

The only formula I remember now is:
M1xV1 + M2xV2= [M1 + M2] x V2
 
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