How many miles will a person run during a 10 kilometer race

One mile is approximately equal to 1.6 kilometers, or 1.609 kilometers to be more exact.

Therefore, if a person has run 10 kilometers, we use the following ratio:

1 mile : 1.6 kilometers
x miles : 10 kilometers

Cross multiplying and equating the expressions:

10 km = 1.6 km * x miles
x = 6.25

The person will have run 6.25 miles in the 10 kilometer race.

The father because kinetic energy is calculated using 1/2mv^2, but in this case if the velocity was the same then the mass would affect the calculation, and the father has the greater mass this making him have the greater kinetic energy