Question

A 10kg mass has a ke of 125 j what is the velocity

Answer 1

Given:

$m=10\:\rm kg$

$E_k=125\:\rm J$

The rinetic energy of an object

$$E_k=\frac{mv^2}{2}$$

Hence, the velocity

$$v=\sqrt{\frac{2E_k}{m}}=\sqrt{\frac{2*125}{10}}=5\:\rm m/s$$