Which statements describe a situation in which work is being done? Select three options.

Work is done when a force causes an object to move in the direction of the force, or has a component in that direction. The mover carries the box upward, the wind pushes the chair across the yard, and the weightlifter raises the barbell, so each involves force and displacement in the same direction. Holding an object still does no work on it, and an upward force on a box moving horizontally does no work in the direction of that force.

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