Question

a car weighing 1000 kg is accelerated to 20 metre per second from start in 5 second calculate the rate of change of momentum of the car​

Answer 1

Answer:

Change in momentum=4000kg m/s

Explanation:

Initial Velocity=0

Mass=1000 kg

Initial Momentum=Mass*Velocity=1000*0=0

Final Velocity=20 m/s

Mass=1000 kg

Final Momentum=1000*20=20000 kg m/s

Rate of change of momentum=Change in momentum/total time

                                                 =20000-0/5=4000 kg m/s

Answer 2

4000kg m/s (by the formula momentum=mass×velocity)

Hope it's helpful