A student was asked to push a large box down the hallway about 35 meters. the task took the student five minutes and a force of 150 newtons. at what rate was the student pushing the box?

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PleaseHelpMe6572 PleaseHelpMe6572

25-05-2018
Physics

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A student was asked to push a large box down the hallway about 35 meters. the task took the student five minutes and a force of 150 newtons. at what rate was the student pushing the box?

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jbsalonga08 jbsalonga08 · Answer 1 · 2018-06-03T08:18:26+02:00

Rate of work or Power done by the student can be computed with below formulas.
1. Formula for Work
Work = Force x distance
Force or F = Force applied to the object
distance or d = displacement

2. Formula for Power
P = Work done / Time it was done or completed

Substituting the values we have,
Work or Work done = 150 N x 35 meters = 5250 J (unit of work).

Lastly computing for the rate we have,
Power or rate of work = 5250 J / 300 seconds (or 5 min) = 17.5 Joule/S or Watts

Answer is 17.5 watts