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A 3 kg object is pushed with a force of 12 N over a distance of 4 m. What is the net work done if friction does 8 J of work?

Practice Questions

1 question
Q1
A 3 kg object is pushed with a force of 12 N over a distance of 4 m. What is the net work done if friction does 8 J of work?
  1. 28 J
  2. 32 J
  3. 36 J
  4. 40 J

Questions & Step-by-step Solutions

1 item
Q
Q: A 3 kg object is pushed with a force of 12 N over a distance of 4 m. What is the net work done if friction does 8 J of work?
Solution: Net work done = Work done by force - Work done against friction = (12 N × 4 m) - 8 J = 48 J - 8 J = 40 J.
Steps: 0

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