Kinetic Energy Formula

The kinetic energy possessed by an object of mass $m$ moving with velocity $v$ is given by: $KE = \frac{1}{2} m v^2$

$KE = \frac{1}{2} m v^2$

Solve for Velocity

$100 = \frac{1}{2} \times 2 \times v^2v^2 = 100 \implies v = \sqrt{100} = 10\text{ m/s}$

$\text{Velocity} = 10 m/s$