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Power

Power. Remember Work?. Work is a force times a distance I do the same work if it takes me 1 minute to walk up a flight of stairs or 1 day to walk up a flight of stairs Because work has nothing to do with time!. Power. Power is the rate at which work is done

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Power

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  1. Power

  2. Remember Work? Work is a force times a distance I do the same work if it takes me 1 minute to walk up a flight of stairs or 1 day to walk up a flight of stairs Because work has nothing to do with time!

  3. Power Power is the rate at which work is done Power = the amount of work done on an object in a unit of time

  4. Another Way of Thinking An object that has more power than another object does more work in the same amount of time VS V12 V4

  5. Calculating Power Dividing the amount of work done, by the amount of time it takes to do the work P = W/t

  6. Units for Power • Work is measured in Joules (J) • Time is measured in seconds (s) • Power is a rate of J/s • We call this a watt (W) • Horsepower is not an SI unit, however 746 watts = 1 horsepower

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