Question

A 45 kg man is running 22 m/s. Calculate the kinetic energy

Answer 1

Answer:

10890 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

$k = \frac{1}{2} \times 45 \times {22}^{2} \\ = \frac{1}{2} \times 45 \times 484 \\ = 45 \times 242 \\ = 10890$

We have the final answer as

10890 J

Hope this helps you