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If a person lifts a 20 kg box to a height of 2 m, what is the work done against gravity? (g = 9.8 m/s²)

Practice Questions

1 question
Q1
If a person lifts a 20 kg box to a height of 2 m, what is the work done against gravity? (g = 9.8 m/s²)
  1. 392 J
  2. 196 J
  3. 588 J
  4. 784 J

Questions & Step-by-step Solutions

1 item
Q
Q: If a person lifts a 20 kg box to a height of 2 m, what is the work done against gravity? (g = 9.8 m/s²)
Solution: Work = m * g * h = 20 kg * 9.8 m/s² * 2 m = 392 J.
Steps: 0

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