HELP ASAP WILL GIVE BRAINLIEST If the mass is 40kg and the initial velocity is 5 m/s, what is the final velocity and the acceleration?

Momentum = (mass) x (speed)

Mass is constant, so the rate of change of momentum is

                       (mass) x (rate of change of speed) .

But (rate of change of speed ) is just acceleration.

So the rate of change of momentum is (mass) x (acceleration).

But (mass) x (acceleration) is Force.

So Force is the rate of change of momentum.    Vey interesting !

In this problem, Force = (40 kg) x (9 m/s²) = 360 newtons.

One 'Newton' is one kilogram-meter per second² .

Unit of momentum is (kilogram)-(meter per second), so 'newton'

is also a unit of time rate of change of momentum.

Rate of change of momentum is 360 momentum units per second.