The momentum of an object is given by the product of its mass and velocity, i.e.,
momentum = mass x velocity
Therefore, the momentum of object A is:
pA = mA x vA
The momentum of object B is:
pB = 3mA x vB
Since the momentum of object B is equal to the momentum of object A, we can set pA = pB and solve for vB:
mA x vA = 3mA x vB
Dividing both sides by 3mA, we get:
vB = vA / 3
Therefore, if the momentum of object B is to be equal to the momentum of object A, object B would have to have a velocity of vA/3, which is one-third the velocity of object A.