Question

A 500-kilogram horse runs at 5 meters/second. The horse’s kinetic energy is
joules.

Answer 1

6250 joules

Step-by-step explanation:

Answer 2

To solve this, we are going to use the formula for the kinetic energy of an object:
`E_(k)= (1)/(2) mv^2`
where

`E_(k)` is the kinetic energy of the object.

`m` is the mass of the object.

`v` is the speed of the object.

We know form our problem that the mass of the horse is 500 kilograms, so
`m=500`; we also know that the speed of the horse is 5 meter/second, so
`m=5`. Lets replace those values in our formula to find
`E_(k)`:

`E_(k)= (1)/(2) mv^2`

`E_(k)= (1)/(2) (500)(5)^2`

`E_(k)= (1)/(2) (500)(25)`

`E_(k)= (12500)/(2)`

`E_(k)=6250` J

We can conclude that the kinetic energy of the horse is 6250 Joules.