Question
A jogger with mass m = 95 kg uses energy at a rate of P = 586 W when she jogs on the horizontal ground
A jogger with mass m = 95 kg uses energy at a rate of P = 586 W when she jogs on the horizontal ground at a constant speed of s= 3.3 m/s. The efficiency of her "human engine" however is e = 0.29 ( in other words, the power used for locomotion is = 0.29 times the total power)
A) Write an expression for the rate of energy expenditure when she jogs at the same constant speed up a slope of = 5.75 degrees. Assume whatever frictional or drag forces are the same in each case. Your answer should be in arms of sylmbols given in the problem statement and g (9.80 m/s2)
B) What is the rate of energy expenditure when she jogs up the slope, in watts?
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