Question

The moment p(in kg m/s) if a particle is varying with time t(in sec) as p=2+3tsquare . The force acting on the particle at t=3s will be

Answer 1

force is equal to the rate of change in linear monentum ....p=2+3t diffrentiate with respect to time ..dp/dt=0+3..so force is independent of time and equal to 3 newton