- #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