Question
Two billiard balls each of mass 50 g moving in opposite directions with a speed of 36 km/hr collide and rebound with the same velocity. What is the impulse imparted to each ball due to the other.
Solution
Impulse imparted to each ball = change in momentum of each ball.
= 2 mv
= 2 x (50 x 10-3) x 10
= 1 kg m/s
