How Much Time Does It Take to Lift a 300 kg Piano 10 Meters?

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To lift a 300 kg piano to a height of 10 meters using a crane that provides 400 watts of power, the time required can be calculated using the formula: time = work/power. The work done is determined by the equation: work = mass x gravity x height, resulting in 300 kg x 9.8 m/s² x 10 m. This calculation yields a total work of 29400 joules. Dividing this work by the power of 400 watts gives a time of 73.5 seconds, which is confirmed to be correct by other participants in the discussion.
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I have a 300 kg piano being lifted at a steady speed from the ground to a hieght of 10 meters and the crane that is doing the lifting is providing 400 watts of power. How much time does it take to get the piano to the top.
So far I have Power = work/Time
so time is Work/ power , so, work is equal to mass X gravity X hieght
so I have (300)(9.8)(10)/(400) = 73.5 sec...is this correct...any help would be nice. Thanks
 
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Your work is correct. I get the same result.
 
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