* Momentum is a vector: Momentum isn't just about mass; it also depends on velocity.

* Zero velocity means zero momentum: If an object with mass is at rest (velocity = 0), its momentum will be zero.

Here's the correct way to think about it:

* Two objects with the same mass and the same velocity will have the same momentum. This is because momentum is calculated as:

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

* Two objects with the same mass, but different velocities, will have different momenta.

Example:

* A car (1000 kg) parked on a hill has the same mass as a car (1000 kg) driving at 20 m/s. However, the parked car has zero momentum, while the moving car has significant momentum.

In summary: Having the same mass doesn't guarantee momentum. Momentum also requires motion (non-zero velocity).