To solve this, we are going to use the formula for the kinetic energy of an object: [tex]E_{k}= \frac{1}{2} mv^2[/tex]
where
[tex]E_{k}[/tex] is the kinetic energy of the object.
[tex]m[/tex] is the mass of the object.
[tex]v[/tex] is the speed of the object.
We know form our problem that the mass of the horse is 500 kilograms, so [tex]m=500[/tex]; we also know that the speed of the horse is 5 meter/second, so [tex]m=5[/tex]. Lets replace those values in our formula to find [tex]E_{k}[/tex]:
[tex]E_{k}= \frac{1}{2} mv^2[/tex]
[tex]E_{k}= \frac{1}{2} (500)(5)^2[/tex]
[tex]E_{k}= \frac{1}{2} (500)(25)[/tex]
[tex]E_{k}= \frac{12500}{2} [/tex]
[tex]E_{k}=6250[/tex] J
We can conclude that the kinetic energy of the horse is 6250 Joules.
