- #1

Momentous

- 18

- 0

## Homework Statement

If ~r, ~v and ~a denote the position, velocity and acceleration of a particle, prove that

## Homework Equations

(d/dt)[ a * ( v x r)] = (da/dt) * (v x r)

"*" is a dot product

"x" is a cross product

## The Attempt at a Solution

I didn't really get that far. The only thing I could think of was to make v = dr/dt, and a = d^2r, dt^2