Question
A man weighing 60kg starts climbing up after eating 5 bread slices of food value 1000 calories. The efficiency of human body is 0-28. Find the height to which a man can climb up.
Solution
Given here,
Heat released, Q = 1000cal = 4200J
Efficiency,
Therefore,
Work done,
Let the man climb up to height h.
Therefore,
i.e.,