Question

Speed of a car of mass 2000 kg changes from 2 m/s to 5 m/s, change in momentum of car :

1 point

(1) 4000 kg m/s

(2) 6000 kg m/s

(3) 8000 kg m/s

(4) 2000 kg m/s
​

Answer 1

m=2000kg

u=2m/s

v=5m/s

So,

Change in Momentum=mv-mu

=m(v-u)

=2000(5-2)

=2000×3

=6000kg.m/s

=>Option (2)

Hope it is helpful.