A 0.5 Kg ball is moving with a speed of 12 m/s strikes a hard wall at an...







aipmt neet 2006 nlm frict q 1 this is a qus based on the formula of average force which depends 

on change in momentum and since momentum is a vector quantity so change in it or its 

component needs to be taken care of . Rest u will understand after watching the video
















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