Question

The momentum p (in kg m/s) of a particle is varying with time t (in s) as p=2+3R. The force acting on the particle
at t= 3 s will be
(1) 18 N
(2) 54 N
(3) 9N
(4) 15 N​

Answer 1

Answer:

Explanation: force is rate of change of momentum.

Differentiate wrt time and put t=3 to obtain force acting at t=3