Question

A ball of mass hundred gram and another ball of 120 gram move towards each other with speed of 6 m per second and 5 M per second respectively if they stick to each other after colliding what would be the velocity of the combined mass after the collision

Answer 1

Net momentum =mv+MV

=(0.1 kg)(6 m/s)+(0.12 kg)(-5 m/s)

=(0.6-0.6)kgm/s

= 0

So the mass will stay where they collided.

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