6. If momentum of an object is doubled what happens to its velocity?
Momentum is the product of mass and velocity where mass is constant for a particular body. So change in momentum for a particular mass is only depend on the change in velocity.
So the change in momentum for a mass “m” is equal to the change in velocity.
So because you double the momentum (2p) then velocity is also doubled, change by (2).
so option a is correct
hope it hepls.....