Question

How much kinetic energy does a moving object have if it’s mass is 100 kg and it is moving at a speed of 5 meters per second

Answer 1

We will have the following:

$k=\frac{1}{2}(100\operatorname{kg})(5m/s)^2\Rightarrow k=1250J$

So, the object has 1250 Joules of kinetic energy.