Which statements describe a situation in which work is being done? check all that apply.
a mover carries a box up a flight of stairs.

a mover carries a box across a room.

wind blows against a steel table anchored to the ground.

wind blows a pool chair across the yard.

a weightlifter lifts a barbell off the ground.

a weightlifter holds a barbell above the head.

The work is being done in following cases:

A mover carries a box up a flight of stairs.

A mover carries a box across a room.

Wind blows a pool chair across the yard.

A weightlifter lifts a barbell off the ground.

These are the only cases in which work is being done. The Formula of Work is:

Work= Force applied x Distance moved.

In all of these cases force is being applied and the object on which the force is being applied move in a horizontal or Vertical direction.  Thus Work is done !

i think the answer would be b

it doesn't. it was imagined up in the middle ages.