Question

a car of mass 200 kg is moving at a velocity 50m/s.on applying brakes it comes to rest for 10s.calculate it change in momentum​

Answer 1

Answer:

-1000kgm\s

Explanation:

Mass of car= m = 200kg

Initial velocity = 50 m\s

final velocity= 0m\s

t = 10s

Change in momentum =(mass\ time). (Average velocity)

=(200\10)(final velocity - initial velocity)

=(20)(0-50)

=(20)(-50)

=-1000Kgm\s