Question

a boy of mass, 5kg moving with initial velocity 2 ms - 1 and final velocity 3 m s - 1 what is change in the momentum​

Answer 1

∆p = P ( final) - P ( initial ) = J

P (I) + J = P (f)

mv(i) + J = mv(f)

5×2 + J = 5×3

J = 5 kg m/s

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