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# Power

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### Power

1. 1. POWERDoing work in time
2. 2. • A force applied to an object that results in movement in the same direction that the force is applied.Definition of work
3. 3. • Determine that the 2 conditions are met: • Application of force • Movement in the direction of the applied forceCalculating work
4. 4. • Power is the measurement of work that is done in an amount of time. • “how much work can you do per second, hour, etc.”Definition of Power
5. 5. • Power’s symbol: P P=W tFormula to calculate
6. 6. • Follow the units to get the units of power: • Work=F*d SI or Metric (N*m or Joules) English (lb*ft) • Power=W/t SI or Metric (Nm/s or J/s) English (lbft/s) 1 Joule/sec is called a Watt (What?)Units!!!
7. 7. • 550 ftlb/s = 746Watts = 1hpConversions