STATEMENT-1: `|(dvecv)/(dt)|` is equal to `(d)/(dT)|vecv|`. Here `vecv` has its usual meaning.
STATEMENT-2: If a particle si acted upon by a external force its momentum must change.
A. Statement -1 is True, Statement-2 is Ture, Statement-2 is a correct explanantion for Statement-1.
B. Statement-1 is Ture, Statement-2 is Ture, Statement-2 is Not a correct explanantion for Statement-1.
C. Statement-1 is True, Statement-2 is False.
D. Statement-1 is False, Statement-2 is True.