- #1

- 7

- 0

## Homework Statement

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.