How Do You Calculate the Power of a Crane Lifting a Mass?

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The discussion centers on calculating the power of a crane lifting a 500 kg mass to a height of 30 meters in 15 seconds. The correct power output can be determined using the formula for power, which is the rate of doing work. The work done by the crane is calculated as the product of the mass, gravitational acceleration, and height, resulting in 14700 Joules. Dividing this by the time taken (15 seconds) yields a power output of 980 W, confirming option d as the correct answer.

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Hey! please can you explain how i do this (not the answer, just an example of how i could fnd the answer to this question)::

Q) A crane can lift a 500kg mass (not weight) to a height of 30m in 15s. How much power would the crane have?

a. 1000 W
b. 2450 W
c. 51 W
d. 9800 W

I'm guessing it would be 51W but not sure since we haven't had any practice @ class...

Thanks everyone!
 
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use the definition of power which is the rate of doing work.

what is the work done by the machine?
what is the time taken?
 

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