If the speed of a moving object is doubled, the momentum of the object must also double.

Here's why:

* Momentum is a measure of an object's mass in motion. It is calculated by multiplying the object's mass (m) by its velocity (v): Momentum (p) = m * v

* If the velocity (v) is doubled, and the mass (m) remains the same, the momentum (p) will also double.

Let me know if you'd like to explore other quantities related to motion!