1. The problem statement, all variables and given/known data A block of mass m=2kg and one of mass M=8kg have initial velocity zero. The friction coeffecient between m and M blocks is 0.3 Between block M and the surfasse there is no friction. L=3 metres F is a force constant and horizontal with magnitude 10 N, applied on block m and so block m starts to move and goes to left extremity of block M. block M also moved as you can see in the image 1) How long does it takes to block m to arrive to left extremity of block M? 2? What is the value of the displacement of block M? the image is: http://s3.amazonaws.com/answer-board-image/79698f93-5a84-4194-ab39-782abe24edcd.png 2. Relevant equations 3. The attempt at a solution i put the forces applied in each block: block 1: x: ma1=F-F(of friction) y: mg=Normal force 1 block 2: x: Ma2=F(of friction) y: Mg=Normal force 2 and then i took a2 (acceleration of block 2) = 0.735 m s^-2 i tried to use v^2=v^2 (initial) +2ax but i dont know v neither x....any suggestion?