Two identical boxes are each lifted through the same vertical distance

PHYSICS · Subjective · CBSE · Physics · Work and Energy · Work and Energy

Problem

Two identical boxes are each lifted through the same vertical distance, requiring

500\,\text{J}

of work per box. Person A completes the lift in

10\,\text{s}

, whereas Person B takes only

5\,\text{s}

. Explain which person delivers the greater average power and state the reasoning in one or two sentences.