# Homework Help: Work=Kinetic Energy formulas

1. Feb 14, 2012

### -Physician

1. The problem statement, all variables and given/known data
We have Work=Kinetic Energy which is :
$A=E_k=Fd=\frac{1}{2}mv^2$
Find formulas of :
Force, distance, mass, velocity squared and velocity

2. Relevant equations
$A=E_k=Fd=\frac{1}{2}mv^2$

3. The attempt at a solution
$F=\frac{\frac{1}{2}mv^2}{d}$

$d=\frac{\frac{1}{2}mv^2}{F}$

$m=\frac{2Fd}{v^2}$

$v^2=\frac{2Fd}{m}$

$v=\sqrt{\frac{2Fd}{m}}$

Are all the formulas right found? Thanks ;)

2. Feb 14, 2012

Yes.