Question

a ball of mass 200g slows down from 10 m/s to 2m/s .Find change in momentum

Answer 1

Answer:

Initial velocity of the ball, u=−10 ms

−1

(- sign shows the opposite direction)

Final velocity of the ball, v=5 ms

−1

Mass of the ball, m=200 g=0.2 kg

Net change in the momentum of the ball, ΔP=P

f

−P

i

ΔP=mv−mu=m×5−m×(−10)

∴ΔP=15×m=15×0.2=3 kg m s

Answer 2

Answer:

wait for few minute I will give you ans