A 345kg piano is lifted 15.0m to the second story of a building. If a crane can do the work in 32.0 s, how much power does the crane exert?
1 Answer
Mar 13, 2018
I get
Explanation:
Well, power is defined through the equation,
where
Work is defined by the equation:
where
In here, the force exerted will be the weight of the piano, which is
So, the work is
The power is then