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
1 answer