Momentum describes how much motion an object carries — a combination of how heavy it is and how fast it's moving.
Momentum describes how much motion an object carries — a combination of how heavy it is and how fast it's moving. It's a key quantity in collisions, since total momentum is conserved. This calculator finds momentum from mass and velocity.
A 0.5 kg ball is thrown at 15 m/s. Momentum = 0.5 × 15 = 7.5 kg·m/s.
Momentum = mass × velocity (p = mv).
In a closed system, total momentum before an event equals total momentum after.
Momentum depends on the product of mass and velocity, so different combinations can yield the same momentum.