Question

How much work os done on a 10N block that is lifted 5 meters off the ground by a pulley?

Answer 1

                     Work = (force) x (distance)

When a force of 10 newtons acts through a distance of 5 meters,
the work done is  (10newtons x 5meters) = 50 joules.

It makes no difference what the purpose of the job is,
or what kind of contraption you use to do it.