# ps

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A climber pulls herself 8 meters upwards with a force of 150 Newtons. If it takes her 16 seconds to cover the 8 meters, how much power is she using?

• physical science -

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• Physics -

The work done is force x distance

The power used is the rate of doing work, i.e. work/time

Note that the word for the unit of force, newton, has a lower case 'n' whereas the symbol has a capital 'N'.

• ps -

power=work/time=force*distance/time

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