Question

what is the si unit of work? multiple choice foot-pound (denoted as ft-lb). newton/meter (denoted as n/m). newtons (denoted as n). joule (denoted as j).

Explanation:

• Foot - pound is an imperial unit, not SI.
• Newton/meter is the unit of spring constant (force per unit length), not work.
• Newton is the unit of force, not work.
• Work is defined as force times distance. In SI units, force is in Newtons (N) and distance in meters (m), so work is \(N\cdot m\), which is called a Joule (J).

Answer:

D. Joule (denoted as J)