# Question #52bae

Oct 9, 2017

71824 Joules

#### Explanation:

Kinetic energy is calculated using half the mass times the square of the velocity.

$K E = \frac{1}{2} m {v}^{2}$

So, $800 k g$ moving at $13.4 \frac{m}{s}$

$K E = \frac{1}{2} \cdot 800 \cdot {13.4}^{2} \frac{k g \cdot {m}^{2}}{s} ^ 2$

$K E = 71824 \text{ } N m$