An object of mass 100 kg is accelerated uniformly from a velocity of 5 m s-1 to 8 m s-1 in 6 s. Calculate the initial and final momentum of the object. Also find the magnitude of the force exerted on the object.
Firstly, we have to calculate the initial momentum:
= Mass × Initial velocity
= 100 × 5
= 500 kg m/s (i)
Now, we will find the final momentum
= Mass × Final velocity
= 100 × 8
= 800 kg m/s (ii)
Now,
Force =
=
=
= 50 N