Questions
A particle having a mass 0.5kg is projected under gravity with a speed of 98m/s at an angle of 60° to the horizontal. The magnitude of the change in momentum (in N-sec) of the particle after 10seconds is
detailed solution
49
There is no change in horizontal velocity, hence no change in momentum in horizontal direction. The vertical velocity at t=10sec is
So change in momentum in vertical direction is
So change in momentum in vertical direction is
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