The product of the mass x the velocity will be the same for both. Momentum is the action of a body with a particular mass through space and there is the conservation of momentum.
Momentum is described as the mass of the object multiplied by its velocity.
Momentum (p) = Mass (M) * Velocity (v)
Therefore for two objects with many masses to have a similar momentum, then the lighter one has to be moving quicker than the heavier object.
