Question

what is the change of momentum of a car weight 1500 kg when its speed increases from 36 km per hour to 72 km per hour uniformly


Answer 15000kg m/sec

Answer 1

heya here is your answer

u = 36km/h =( 36* 5/18 ) m/s=10m/s

v=72km/h=(72* 5/18) m/s=20m/s

change in momentum = m(v-u)

=1500(20-10) kg m/s

=1500*10 kg m/s

=15000 kg m/s.........

Answer 2

u=10 m/s
v=20m/s
change in momentum=m(v-u)
=1500(20-10)
=1500×10
=15000 kg m/sec