Here's why:
* Momentum is the measure of mass in motion. It's calculated by the formula:
* Momentum (p) = mass (m) x velocity (v)
To find the momentum, you need both the mass (which you have) and the velocity of the object.
Example:
* If the 20 kg object is at rest (velocity = 0 m/s), its momentum is 0 kg*m/s.
* If the 20 kg object is moving at 5 m/s, its momentum is 20 kg * 5 m/s = 100 kg*m/s.
