General Science - Physics MCQs

Q.  A person runs up two flights of stairs instead of walking up. The person feels more tired because ___?

a. He does more work when he runs in comparison to when he walks
b. His power output is greater when he runs in comparison to when he walks
c. His gravitational force is greater when he runs in comparison to when he walks
d. He has more inertia when he runs in comparison to when he walks


ANSWER: See Answer
 
Energy required during running up two flights of stairs is much higher than the time of walking up. It needs more energy and that is why the person feels more tired.
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