Question

31.
A force of 10 Newton acts on a body of mass 20 kg for 10 seconds. Change in its momentum is
(A) 5kgms?
(B) 100kgms?
(C) 200 kgms
(D) 1000 kgms!​

Answer 1

Answer:

force = 10 Newton

mass= 20 kg

time= 10 second

we know that

F = ma

F = m ( v-u/t)

Ft= m(v-u)

so change in momentum = Ft

change in momentum= 100kgm/s

$\huge\pink{Brainlist}$

Answer 2

Answer:

100 m/s

EXPLANATION

f=ma

f= m(v-u/t)

momentum = ft

10×10 = 100kgm/s