Question

A man throws a ball weighing 500 g vertically upwards with a speed of 10 m/s. 

1. What will be its initial momentum ? 

2. What would be its momentum at the highest point of its flight ?

Answer 1

Mass of ball = 500 g = 0.5 kg

Initial velocity = 10 m/s

1. Initial momentum = 0.5 x 10 = 5 kg.m/s

2. Velocity at the highest point = 0 m/s

Momentum at the highest point = 0.5 x 0 = 0 kg.m/s