# What is the kinetic energy of a 8 kg object moving at 5/4 m/s?

Aug 9, 2016

That object has a kinetic energy of $6.25 J .$

#### Explanation:

Let's begin with using the formula below:

We already have the mass and velocity, and both have good units so all we have to do is plug the given values into the equation:

$K E = \left(.50\right) \left(8 k g\right) {\left(\frac{5}{4} \frac{m}{s}\right)}^{2}$
$K E = 6.25 k g \times {m}^{2} / {s}^{2}$

$K E = 6.25 J$