Question

work is when an object moves a distance due to a specific force. in order for work to be done, the object must move a distance in the direction of the applied force. the formula for work is: force distance = work work is measured in newton meters, n·m. what is the best definition of work? when the net force on an object is zero. when an object moves a distance due to a specific force. when an object stays stationary and does not move.

Explanation:

The left - hand side of the image clearly states that "WORK is when an object moves a distance due to a specific force". The first option "When the net force on an object is zero" is incorrect because if the net force is zero, there is no unbalanced force causing the object to move (by Newton's first law, the object will either stay at rest or move at a constant velocity if already in motion, but work is about a force causing a displacement). The third option "When an object stays stationary and does not move" is also incorrect as work requires a displacement. The second option directly matches the given definition of work in the image.

Answer:

When an object moves a distance due to a specific force.