Posted by **Tori** on Monday, January 10, 2011 at 6:49pm.

A 53 kg student eats a 200 Calorie doughnut.

To “burn it off”, he decides to climb the

steps of a tall building. (1 food Calorie = 103

Calories.)

How high would he have to climb to expend

an equivalent amount of work? The accelera-

tion of gravity is 9.8 m/s2 .

Answer in units of m.

i have no attempt. i have no idea what to do. and there are many where that came from

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