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Homework Statement
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
Homework Equations
The Attempt at a Solution
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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 don't know v neither x...any suggestion?
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