Understanding Momentum

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

* Momentum (p) = mass (m) × velocity (v)

Applying the Formula

* Mass (m) = 7 kg

* Velocity (v) = 3 m/s

Calculation:

* Momentum (p) = 7 kg × 3 m/s = 21 kg m/s

Answer: The momentum of the 7 kg object moving at 3 m/s is 21 kg m/s.