A Person Running in Place on an Exercise Machine for 10

question 440

Multiple Choice

A person running in place on an exercise machine for 10 min uses up 17 kcal (food calories) . 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. (1 cal = 4.186 J)

• A) 1500
• B) 2900
• C) 2200
• D) 1450
• E) 730

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