Question

What is the kinetic energy of a 0.38 kg soccer ball that is traveling at a speed of 120 m/s?

Answer 1

Answer:

The answer is 2736 J

Explanation:

The kinetic energy (KE) of an object given it's mass and velocity can be found by using the formula

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

where

m is the mass of the object

v is the velocity

From the question

m = 0.38 kg

v = 120 m/s

We have

$KE = \frac{1}{2} \times 0.38 \times {120}^{2} \\ = \frac{1}{2} \times 0.38 \times 14400 \\ = 0.38 \times 7200$

We have the final answer as

2736 J

Hope this helps you