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Homework Statement
A 80 kg man is running and each second he needs a energy of 812.77 J. Find:
a) The speed (in m/S) of the runner.
b) How many kcal will be burn in one hour with the speed calculated in a)?
Homework Equations
Kinetic energy; kcal = 4184 J
The Attempt at a Solution
a) Ek = (1/2) m v²
b) Convert to kcal with kcal = 4184 J and multiply by 3600 s.
Is it correct or is there another solution?
Thanks in advance.