Physics, 09.12.2020 09:00 Goosebumpsestoybox

A person running in place on an exercise machine for 10 min uses up 17 kcal. Another person exercises by repeatedly lifting two 2.5-kg weights a distance of 50 cm. How many repetitions of this exercise are equivalent to 10 minutes of running in place? Assume that the person uses negligible energy in letting down the weights after each lift.

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A person running in place on an exercise machine for 10 min uses up 17 kcal. Another person exercise...