Asked by Johnnie

If a 60.0 kg person will need to climb a 10.0 m stairway how may times to work off each excess Cal (kcal) consumed?

Answers

Answered by bobpursley
I find it very odd that heat/work problems are being assigned in kcal (Food Cal). That is about 50 years out of date in science.

work=force*height= 60kg(9.8N/kg)*10m*n

now, to convert 1Cal to joules, put this in your google search window
1 kcal in Joules

418joules=60*9.8*10*n
solve for n

and, it is less than once up the stairs. One food calorie is not much energy.
Answered by Johnnie
Thanks.......I really don't understand anything my instructor assigns! He really tries to make this class really difficult by not explaining anything.
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