Question

An object of mass 2 kg is accelerated
uniformly from a velocity of 2 m/s to 4 m/s
in 2 seconds. The magnitude of the force
acting on the object is​

Answer 1

Answer:

refer this............

Answer 2

Answer:

Initial momentum,p1=mu=2kg×2m/s=4kgm/s

Final momentum,p2=mv=2kg×4m/s=8kgm/s

change in momentum,=p2-p1=4kgm/s

Force exerted=change in momentum/time taken

=4kgm/s/2s

=2kgm/s²

=2N

Explanation:

Hope it helps....