Question

10. Calculate the kinetic energy of a running back that has a mass of 80 kg and

is running at a velocity of 8 m/s.

Answer 1

The answer is

2560 J

Step-by-step explanation:

The kinetic energy 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

v is the velocity

From the question

m = 80 kg

v = 8 m/s

The kinetic energy is

`KE = (1)/(2) * 80 * {8}^(2) \\ = 40 * 64`

We have the final answer as

2560 J

Hope this helps you