Question

A 71 kg man is walking at 2 m/s. Calculate the Kinetic Energy for the man

Answer 1

Answer:

142 J

Explanation:

The kinetic energy of an object can be found by using the formula

$k = \frac{1}{2} m {v}^{2}$

m is the mass

v is the velocity

From the question we have

$k = \frac{1}{2} \times 71 \times {2}^{2} \\ = \frac{1}{2} \times 71 \times 4 \\ = 71 \times 2$

We have the final answer as

142 J

Hope this helps you