If the velocity of an object is doubled, its momentum is doubled as well.

Here's why:

* Momentum (p) is defined as the product of mass (m) and velocity (v):

p = m * v

* If you double the velocity (v), you are essentially multiplying the original momentum by 2:

p' = m * (2v) = 2 * (m * v) = 2p

Therefore, doubling the velocity results in a doubling of the momentum.