I went for a run and measured time and distance. I wanted to estimate how many calories I used.(adsbygoogle = window.adsbygoogle || []).push({});

Suppose a ran a distance [tex]x[/tex] in an amount of [tex]t[/tex] time.

if my mass is [tex]m[/tex], then my stead state average energy would be

[tex]E=\frac{1}{2}m\frac{\Delta{x}^2}{\Delta{t}^2}[/tex]

But what is the rate at which I am using energy?

Or what is the total energy used in either distance [tex]x[/tex] or time [tex]t[/tex]?

Total energy used, or work, can be gotten from [tex]W=Fx[/tex], and the rate of energy used from [tex]P=Fv[/tex]. But I don't know what the force [tex]F[/tex] is.

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# Steady state energy vs. energy rate

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