Apply Law of conservation of linear momentum .01*1000=2v+.01*400 v is velocity of block we get,v=3m/s now apply conservation of mechanical energy for block 1/2mv^2=mgh we get h=9/20m Rate if satisfied
Anyone who has never made a mistake has never tried anything new
You can never solve a problem on the level on which it was created.
When you are courting a nice girl an hour seems like a second. When you sit on a red-hot cinder a second seems like an hour. That's relativity
Purpose of solving a problem is not simply to get the answer(the answer is only an evidence) but to develop your thinking ability
Moderation Team
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