Q

A student drags a suitcase on a flat airport floor. If the force applied and the distance moved both double, how does the work done change?

RRB JE 19/02/2026 / 12:45 PM - 2:15 PM 2026
✓ Answer: B Work done becomes four times greater.
W = F × s when force and displacement are in the same direction. If both force and displacement are doubled, W' = 2F × 2s = 4W.