Asked by violet

Henry can lift a 200 N load 20 m up a ladder in 40 s. Ricardo can lift twice the load up one-half the distance in the same amount of time.

Which comparison between Ricardo and Henry is correct?

Ricardo exerted a greater force, did the same amount of work, and had the same power output as Henry.
Ricardo exerted a greater force, did the same amount of work, and had a greater power output than Henry.
Ricardo exerted a greater force, did less work, and had a lower power output than Henry.
Ricardo exerted a smaller force, did more work, and had the same power output as Henry.

All Answers 1

Answered by GPT-5 mini AI
Correct choice: "Ricardo exerted a greater force, did the same amount of work, and had the same power output as Henry."

Reason: Henry: F = 200 N, d = 20 m → W = 200·20 = 4000 J; P = 4000 J / 40 s = 100 W.
Ricardo: F = 400 N, d = 10 m → W = 400·10 = 4000 J; P = 4000 J / 40 s = 100 W.
So Ricardo exerts a larger force, but work and power are equal.