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5/30 MCQs for:
MECHANICS : ENERGY - Power
A person runs upstairs with a constant power output of 200 W. If the total work done to reach the top is 1000 J, how long does it take the person to reach the top?
A person lifts a 50 kg weight vertically by 2 meters in 10 seconds. What is the power exerted by the person? (Use g = 10m/s²) :
What is the typical power output of a human during strenuous exercise?
What is the relationship between work, power, and time?
What is the average power developed by a person running up a flight of stairs that requires 1200 J of energy and takes 10 seconds?