if a runner's is 400 w as she runs, how much chemical energy does she convert into other forms in 10.0 minutes?

Question

Physics

Sweet Tea

3 February, 08:40

if a runner's is 400 w as she runs, how much chemical energy does she convert into other forms in 10.0 minutes?

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Answers (1)

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Braden Kemp · Answer 1

The runner runs for a total time of

/Delta t=10.0 min = 600 sΔt=10.0min=600s

The energy converted by the runner during this time is equal to the power of the runner times the total time:

E=P / Delta t=400 W / cdot 600 s = 2.4 / cdot 10^5 JE=PΔt=400W⋅600s=2.4⋅10

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