momentum is the product of mass and velocity
example let velocity of body A = 4 m/s and mass be m
1) initial momentum(p) = 4m
2) velocity double --- ( multiply be 2)
so new velocity = (4*2) = 8 m/s\
so final momentum(p) = 8m
CONCLUSION :
make as if mass of object which is m has a numerical value (take 1 N for instance)
Therefore initial p = 4 and final p = 8 (for mass=1N)
it is valid saying that " FOR AN OBJECT OF CONSTANT MASS, MOMENT TUM DOUBLE WITH DOUBLING VELOCITY"
hope it was clear enough :)
