You carry a 7.0-kg bag of groceries $1.2 \mathrm {~m}$ above the ground at constant speed across a $2.7 \mathrm {~m}$ room. How much work do you do on the bag in the process?

Question

Quizplus · Accepted Answer

Since the bag is being carried at a constant speed, there is no net force acting on it and thus no work is being done on the bag. Work is only done when there is a force and a displacement in the direction of the force. Therefore, the answer is 0 J.

You Carry a 7 1.2 m1.2 \mathrm {~m}1.2 m Above the Ground at Constant Speed Across A

You Carry a 7 $1.2 \mathrm {~m}$ Above the Ground at Constant Speed Across A