A 179 kg student eats a 200 Calorie dough-
nut.
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.
