Question

If a spring is stretched, what is the work done by the stretching force?

• A. Positive
• B. Negative
• C. Zero
• D. None of these

Answer 1

The correct option is A

Positive

Since the applied force in the spring and the expansion of the spring is in the same direction. So, work done by the stretching force is positive.

Work = Force $\times$ Displacement $\times$ $\cos$ $\theta$

$\theta$ = $0^{\circ }$

Work = Force $\times$ Displacement (positive)