A 50-meter rope weighing 2 N/m supports a piano weighing 600 N. Find the work done in lifting the piano 25 meters
2. Relevant equation.
None of the calculus equation, techniques covers this type of question with mass/length involved.
The Attempt at a Solution
I know the formula $W=GMm(1/r-1/r_i)$ for work done by gravity pulling an object downward. The reverse can be used for raising an object. But since $G$ is not given, I assume this formula is irrelevant.