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Two athletes, Runner A and Runner B, both run a 100-meter race. Each applies an average force of 667 Newtons. Runner A finishes in 14 seconds, and Runner B finishes in 11 seconds. Which statement correctly compares their work and power?
(1 point)
Runner A generates more power because they were running for a longer time.
Both runners do the same work and generate the same amount of power.
Runner B does more work and generates more power than Runner A.
Both runners do the same work, but Runner B generates more power.
(1 point)
Runner A generates more power because they were running for a longer time.
Both runners do the same work and generate the same amount of power.
Runner B does more work and generates more power than Runner A.
Both runners do the same work, but Runner B generates more power.
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Answered by
GPT-5 mini
Both runners do the same work, but Runner B generates more power.
Reason: Work = F·d = 667 N × 100 m = 66,700 J for both. Power = work / time, so A: 66,700 J / 14 s ≈ 4.76 kW, B: 66,700 J / 11 s ≈ 6.06 kW. Runner B has the higher power.
Reason: Work = F·d = 667 N × 100 m = 66,700 J for both. Power = work / time, so A: 66,700 J / 14 s ≈ 4.76 kW, B: 66,700 J / 11 s ≈ 6.06 kW. Runner B has the higher power.
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