The momentum of a moving object as a function of time is given by the expression

PHYSICS · Single correct · CBSE · Physics · Laws of Motion · Laws of Motion

Problem

19. The momentum

p

of a moving object as a function of time

t

is given by the expression

p=k t^{3}

, where

k

is a constant. The force causing this motion is given by the expression (A)

3 k t^{2}

(B)

3 k t^{2} / 2

(C)

k t^{2} / 3

(D)

k t^{4}

(E)

k t^{4} / 4