hem4sadiceoooo
hem4sadiceoooo hem4sadiceoooo
  • 21-09-2016
  • Physics
contestada

girl lifts a 160-N load to a height of 1m in 0.5s.
how much power is used to lift the load?
32w
160w
320w
80w

Respuesta :

taskmasters
taskmasters taskmasters
  • 23-09-2016
Power is the energy consumed to do work in unit time. It is calculated by dividing the work done with the time it took for the work to be done. It is expressed as:

Power = Work / Time = Force x Distance / Time
Power = 160 N (1 m) / 0.5 s = 320 W

Therefore, the correct answer is the third option. 

Hope this answers the question. Have a nice day.

Answer Link
shaylykristi shaylykristi
  • 14-05-2019

Answer: 320W

Explain:

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