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Question #52bae

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Oct 9, 2017

71824 Joules

Explanation:

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

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

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

$K E = \frac{1}{2} \cdot 800 \cdot {13.4}^{2} \frac{k g \cdot m^{2}}{s^{2}}$ $KE = 1/2 * 800 * 13.4^2 (kg*m^2)/s^2$

$K E = 71824 N m$ $KE = 71824" " Nm$

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