Question

5.
The momentum p (in kg m/s) of a particle is varying with time t (in s) as p= 2+ 3t^2. 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

Hey mate hope it helps you.....

The answer is 18N

Answer 2

Answer:

9 N

Explanation:

by putting the value of time in the equation of momentum, we get

p=2+3(3)^2

p=2+3*9

p=2+27

p=29

as we also know that, the rate of change of momentum gives the force,

F=p/t

F=29/3

F=9.6 N which is approximate to 9N

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