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Mashcka [7]
3 years ago
7

Sam is moving house and is carrying a 300N box of books up a flight of steps 5m high, it takes her 30 seconds. Gary follows her

carrying a bag of clothes doing 1000 J of work; it only takes him 25 seconds. Who provides the biggest power? Show your working.
Physics
1 answer:
ioda3 years ago
7 0

Answer: Sam provides the biggest power

Explanation: <u>Power</u> is defined, in Physics, as the rate of work done. <u>Work</u> is energy transferred to an object due to the force causing the displacement of the object.

So, to determine Power:

For Sam:

P = \frac{work}{time}

P=\frac{F.d}{t}

P=\frac{300.5}{30}

P = 50 Watts

The unit for Power is [P] = J/s = Watt

For Gary:

P = \frac{work}{time}

P=\frac{1000}{25}

P = 40 Watts

Comparing power of Sam and Gary, we can conclude that Sam provides the biggest power of 50 Watts.

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