Question

How much work does it take to raise a `31 kg` weight `86 m`?

Answer 1

`26.127kJ`

Explanation:

By definition, work is the vector dot product of the resultant force with the displacement moved in the direction of the resultant force. ie. `W=int vec F * d vecx`

Thus, assuming the object is lifted directly upwards,

`W=(31xx9.8)xx86=26.127kJ`