Find the kinetic energy of the horse using KE=1/2 mv². A 500-kilogram horse runs at 5 meters/second. The horse’s kinetic energy is
[blank] joules.

6250

Explanation:

so m=500 and v=5

so v²=25

using the equation we can do 1/2 x 500 x 25 = 6250

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)

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