A 20 g bullet is fired horizontally into a .5 kg wooden block, resting on a horizontal surface ( kinetic friction coefficient is .2), THe bullet goes through the block and comes out the other side with a speed of 200m/s... if the block travels 1 m before coming to rest, what was the Vi of the bullet.... (ignore work of gravity on the bullet....ps, this is a momentum problem i think, i just cant get it, i would GREATLY appriciate any help on this.... i have the answer but i need to work to get credit..... this is what i have so far(adsbygoogle = window.adsbygoogle || []).push({});

i tried using Wnet = change in KE

Fx - .2(.52)(1m)(9.8) = x - 1.02 J but i have no idea what to do next, i think it is a perfectly inelastic collision during the one meter, but than the bullet come out!!?!! how the heck do you account for that? again any help is appriaciated,,, thanks for y our time

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# Homework Help: Please help me, this problem is killing me

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