Question

A particle of mass 1 kg is projected at an angle
45° to the horizontal with an initial velocity of 20
m/s. Change in momentum during its time of
flight is
(a) 10/2 kg m/s (b) 20/2 kg m/s
(c) 30.12 kg m/s (d) 40 72 kg m/s​

Answer 1

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