Question

A ball of mass 10 gram is moving with a velocity of 50 metre per second on applying of constant force on the ball for 2 seconds it requires a velocity of 76 metre per second calculate the initial Momentum and final momentum of the ball
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Answer 1

Explanation:

initial momentum=mass × initial velocity

=(10×50)/1000=0.5unit

(here we divide by 1000 because mass is given in grams and we should have to change it in kilogram thus I divide by 1000)

final momentum=mass × final velocity

=(10×76)/1000=0.76unit

(here also we divide by 1000 because mass is given in grams and we should have to change it in kilogram thus I divide by 1000)