You're integrating both sides of:i know i shoul get the magnitude of v.. but how from 0?
yeah, it will turn out to be |v|^2... but when we integrate 0, we get C...the scalar of v..
yeah sort of... for the second part you somehow need to figure out that [tex]\frac{d(\vec{v}\cdot\vec{v})}{dt} = 2\vec{\frac{dv}{dt}}\cdot\vec{v}[/tex]I need to work it to v^2?
Was the multiplying by two only by the knowledge of doing the first part?