<P> Example : A model airplane of mass 1 kg accelerates from rest to a velocity of 6 m / s due north in 2 s . The net force required to produce this acceleration is 3 newtons due north . The change in momentum is 6 kg ⋅ m / s . The rate of change of momentum is 3 ( kg ⋅ m / s ) / s = 3 N . </P>
<P> Example : A model airplane of mass 1 kg accelerates from rest to a velocity of 6 m / s due north in 2 s . The net force required to produce this acceleration is 3 newtons due north . The change in momentum is 6 kg ⋅ m / s . The rate of change of momentum is 3 ( kg ⋅ m / s ) / s = 3 N . </P>
a quantity 15 m / s to the north is a measure of
a quantity 15 m / s to the north is a measure of
velocity
velocity