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

The answer is 2736 J

Step-by-step explanation:

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

`KE = (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 = (1)/(2) * 0.38 * {120}^(2) \\ = (1)/(2) * 0.38 * 14400 \\ = 0.38 * 7200`

We have the final answer as

2736 J

Hope this helps you