Two billiard balls each of mass 0.05 kg moving in opposite directions

1.	Two billiard balls each of mass 0.05 kg moving in opposite directions with speed 6 m/s collide and rebound at the same speed. What is the impulse imparted to each bail due to the other?
Answer» Impulse = change in momentum Initial momentum of each ball = 0.05 × 6 = 0.3 kg m/s Final momentum of each ball = 0.05 × (-6) = – 0.3 kg m/s Impulse = 0.6 kgm/s (in magnitude).

Two billiard balls each of mass 0.05 kg moving in opposite directions with speed 6 m/s collide and rebound at the same speed. What is the impulse imparted to each bail due to the other?

Answer»

Impulse = change in momentum

Initial momentum of each ball = 0.05 × 6

= 0.3 kg m/s

Final momentum of each ball = 0.05 × (-6)

= – 0.3 kg m/s

Impulse = 0.6 kgm/s (in magnitude).