Answer to Question #90440 in Mechanics | Relativity for AWESOME

Question

prove that force equals the rate of change of momentum

Answer 1

From second Newtons law:

$$m\vec{a}=m\frac{d\vec{v}}{dt}=\vec{F}=\frac{d(m\vec{v})}{dt}=\frac{d\vec{p}}{dt}$$