Question

How much work does it take to raise a `14 kg` weight `15 m`?

Answer 1

The elapsed work is `-2060.1 J`

Explanation:

Consider the equation `L=-(U(B)-U(A))` where `U=mgh`.
You use your values and find that `L=-mgh+0=14kg*9.81m/s^2*15m=-2060.1 J`
That's all.