Question

nappen
a unifo
22. Calculate the momentum of a toy car of mass 200 g moving with a speed of 5 m/s.
at is the change in momentum of a car weighing 1500 kg when its speed increases from 36 km/h to
72 km/h uniformly?
24. Abody of mass 25 kg has a momentum of 125 kg.m/s. Calculate the velocity of the body.
25. Calculate the momentum of the following:
(a) an elephant of mass 2000 kg moving at 5 m/s
(b) a bullet of mass 0.02 kg moving at 400 m/s
followin
An elephant of mass 2000 kg
moving at a speed of 5 m/s
A bullet of mass 0.02 kg moving at a
speed of 400 m/s​

Answer 1

22. =0.2×5=1kgm/s

23. =(1500×20)-(1500×10)

=30000-15000

=15000kgm/s

24.=P=mv

=125=25×v

=125/25=v

=v=5m/s

25.(a)=2000×5=10000kgm/s

(b)=0.02×400=8kgm/s