A person squeezes a balloon horizontally with both hands while holding it at rest, decreasing its width by a certain amount. Is the work done on the balloon by the person positive, negative, or zero?

Question

Quizplus · Accepted Answer

When a person squeezes a balloon, they apply a force over a distance, which means work is done on the balloon. The direction of the force and the direction of the displacement are the same (inward), making the work positive.

A Person Squeezes a Balloon Horizontally with Both Hands While