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Physics Question about Power?
You are working out on a rowing machine. Each time you pull the rowing bar (which simulates the "oars") toward you, it moves a distance of 1.5 m in a time of 1.3 s. The readout on the display indicates that the average power you are producing is 82 W. What is the magnitude of the force that you exert on the handle? since power equals work over time i thought that i could just multiply power and time to isolate work but apparently im wrong??
Why can't you? Assuming the force is constant: P = W / t = F x d / t so F = P x t / d = 82 x 1.3 / 1.5 = 71.07 N