Questions
n balls each of mass m impinge elastically each second on a surface with velocity u. The average force experienced by the surface will be
detailed solution
Correct option is B
Change in momentum of one ball = 2 mu, time taken = 1 sFav= Total change in momentum Time taken =n(2mu)1=2mnuTalk to our academic expert!
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A block of mass kg rests on a horizontal frictionless xy-plane. What would be the acceleration of the block if it is subjected to two forces as shown in figure?
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