Question

An object of mass 100kg is accelerated uniformly from a velocity of 5m/s to find 8m/s in 6sec calculate initial and final momentum of the object also fing magnitude of force exerted on the object

Answer 1

initial momentum =

1000kg * 5m/s = 5000kg. m/s

final momentum =

1000kg * 8m/s = 8000kg. m/s

force = m*a

a = (v - u) /t

= (8 - 5)m/s / 6s

= 3m/s / 6s

= 0.5m/s^2

F = m * a

= 1000kg * 0.5m/s^2

= 500N