Question

calculate the change in momentum of a body weight 10 kg when its velocity decreases from 20 metre per second 0.2 metre per second​

Answer 1

Answer:

Step-by-step explanation:

Given :-

Mass of the body, m = 10 kg

Initial velocity of the body = 20 m/s

Final velocity of the body = 0.2 m/s

To Find :-

Change in momentum

Formula to be used :-

Change in Momentum = mv - mu

Solution :-

Putting all the values, we get

Change in Momentum = mv - mu

Change in Momentum = m (v - u)

Change in Momentum = 10 (0.2 - 20)

Change in Momentum = 10 × (-19.8)

Change in Momentum = - 198 kg m/s

Hence, The Change in Momentum is - 198 kg m/s.