Understanding Momentum

Momentum is a measure of an object's mass in motion. It's calculated by:

* Momentum (p) = Mass (m) x Velocity (v)

Calculations

1. Convert mass to kilograms: 250 grams = 0.25 kilograms

2. Plug in the values: p = (0.25 kg) x (40 m/s)

3. Calculate: p = 10 kg m/s

Answer: The momentum of the ball is 10 kg m/s.