Physics, 20.03.2020 22:06 lavontaebreazeovw645
On flat ground, a 70-kg per-son requires about 300 W of metabolic power to walk at a steady pace of 5.0 km/h(1.4 m/s). Using the same metabolic power output, that person can bicycle over the same ground at 15 km/h. A 70-kg person walks at a steady pace of 5.0 km/h on a treadmill at a 5.0% grade. (That is, the vertical distance covered is 5.0% of the horizontal distance covered.)
If we assume the metabolic power required is equal to that required for walking on a flat surface plus the rate of doing work for the vertical climb, how much power is required?
(a) 300 W;
(b) 315 W;
(c) 350 W;
(d) 370 W.
Answers: 3
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On flat ground, a 70-kg per-son requires about 300 W of metabolic power to walk at a steady pace of...
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