Question

choose the correct answer.
which of the following is true about work?
work is measured in kilometers per second (k/s).
work is measured in feet per hour (f/hr).
work is measured in newton meters (n•m).

Explanation:

• km/s and ft/hr are units of speed/velocity, not work.
• Work (in physics) is calculated as force (in newtons) times distance (in meters), so its unit is newton - meters (N·m, also called joules).

Answer:

Work is measured in newton meters (N·m).