Question

the speed of a car of 100 kg increases from 36 km/h to 72 km/h . what will be the change in momentum of the car:​

Answer 1

Answer:

✪ Given :

Mass of the car = 100 kg

Initial speed of the car = 36 km/hr = 10 m/s

Final speed og the car = 72 km/hr = 20 m/s

߷ To Find :

Change in momentum

☘︎ Solution :

$\boxed{\orange{Change\;in\;momentum,p=mv-mu}}$

➪ p = mv -mu

➪ p = m (v-u)

➪ p = 100(20-10)

➪ p = 100 ×10

➪ p = 1000 kg m/s