Neglecting extraneous factors like wind resistance, and given that the human body is only about 25% efficient, how much power P must an 80.0-kg runner produce in order to run at a constant speed of 3.95 m/s up a 7.00° incline (W)?
Added by Michael P.
Step 1
This force is equal to the weight of the runner times the sine of the incline angle. Weight = mass * gravity = 80.0 kg * 9.8 m/s^2 = 784 N Force = weight * sin(incline angle) = 784 N * sin(7.00°) = 96.1 N Show more…
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