# Problem: Particle A has half the mass and eight times the kinetic energy of particle B. What is the speed ratio vA/vB?

###### FREE Expert Solution

Kinetic Energy:

$\overline{)\begin{array}{rcl}\mathbf{K}\mathbf{.}\mathbf{E}& {\mathbf{=}}& \frac{\mathbf{1}}{\mathbf{2}}{\mathbf{mv}}^{\mathbf{2}}\end{array}}$

mA = 0.5mB

KEA/KEB = 8

###### Problem Details

Particle A has half the mass and eight times the kinetic energy of particle B. What is the speed ratio vA/vB?