Question

A force of 200N acts on a body for 4sec. When the body initially was at rest. The change in momentum is????

Answer 1

Answer:

F = ma

200 = m x v / t

200 = m x v /4

800 = mv

m u = 0 x m

mu =0

Change in momentum =

m(v-u) = 800 Ns

Answer 2

800

hope it helps you

ok