Question

Work is said to be done, when

• A. force acts upon a body, but the body does not move.
• B. the force acts upon a body and moves it, in the direction of force
• C. force acts upon a body, but the body does not move in the direction of force.
• D. none of these

Answer 1

The correct option is B

the force acts upon a body and moves it, in the direction of force

1. Work is said to be done when a force moves an object through a distance in direction of the force.
2. The formula of work $\mathrm{W}=\mathrm{F}\times \mathrm{d}$, Where $\mathrm{F}=\mathrm{Applied}\mathrm{force},\mathrm{d}=\mathrm{distance}$
3. The SI unit of work is the joule (J)

Hence the correct option is B