Here's why:
* Momentum is a measure of an object's mass in motion. It's calculated by multiplying the object's mass (m) by its velocity (v): p = m * v.
* Velocity is a vector quantity, meaning it has both magnitude (speed) and direction.
* Since momentum is directly proportional to velocity, the direction of the momentum vector will be the same as the direction of the velocity vector.
Example:
* A car traveling east at 20 m/s has a momentum that also points eastward.
* A ball thrown upward has a momentum that points upward until it reaches the peak of its trajectory.
