Kinetic energy is the energy possessed by an object due to its movement
or motion. Momentum on the other hand, is the quantity of motion of an
object that is a product of its mass and velocity.
Kinetic Energy = 1/2 M V2kg-m2/s2 (Newton-meter = Joule)
Momentum = M V kg-m/s (Newton-second)
Numerical Difference = (1/2 M V2) - (M V) = (M V) x (1/2V -1) .