Assertion: Product of distance and velocity (i.e. momentum) is basic to the effect of force on motion. Reason: Same force for same time causes the same change in momentum for different bodies.
Options:
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false and R is also false.