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If a person lifts a 10 kg object to a height of 5 m in 5 seconds, what is the power exerted?

Practice Questions

1 question
Q1
If a person lifts a 10 kg object to a height of 5 m in 5 seconds, what is the power exerted?
  1. 100 W
  2. 200 W
  3. 300 W
  4. 400 W

Questions & Step-by-step Solutions

1 item
Q
Q: If a person lifts a 10 kg object to a height of 5 m in 5 seconds, what is the power exerted?
Solution: First, calculate the work done: W = mgh = 10 kg * 9.8 m/s² * 5 m = 490 J. Then, power is P = W/t = 490 J / 5 s = 98 W.
Steps: 0

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