Question

An object of mass 100 kg is accelerated uniformly from a velocity of 5 metre per second to 8 metre per second in 6 second. Calculate the initial and final momentum of the object. Also find the magnitude of force exerted on the object.

Answer 1

Answer:

momentum=mass×volocity

Answer 2

Explanation:

Mass of object, m=100kg;

initial velocity, u=5ms −¹

; final velocity, v=8ms −¹

; time, t=6s

Initial momentum =mu=100×5=500Ns

Final momentum =mv=100×8=800Ns

Force exerted on the object,F= mv−mu/t

= 800−500/6

=300/6

=50N