# How to solve this?

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Two balls of mass 4 kg and 2 kg are moving with speed 10 m/s and 8 m/s, respectively with ball of heavier mass behind the lighter ball. The two balls collide each other elastically. Total impulse imposed by ball of mass 2 kg to the ball of mass 4 kg has the magnitude equal to

Two balls of mass 4 kg and 2 kg are moving with speed 10 m/s and 8 m/s, respectively with ball of heavier mass behind the lighter ball. The two balls collide each other elastically. Total impulse imposed by ball of mass 2 kg to the ball of mass 4 kg has the magnitude equal to

##### 1 Answer

Dec 1, 2017

**Hint**: The net impulse is equal to the net change in momentum. Calculate the momenta of the