# Homework Help: Applying Physics to my workout

1. Mar 14, 2005

### JasonL

Ok,

First off this isn't a book problem so I'm not really sure if it can be solved. I just kinda dreamed this up one day while deciding to count the calories in my lunch + breakfast. It should work..if I thought everything through, and I can live with a few simplying assumptions. Anyhow, I totaled the calories I eat in 2 meals, and I want to find how many miles I would have to run to "burn" of these calories(Springbreak saw me gain 5lbs :yuck:).

Ok so,

If my total calories are 1,146c, so that's 4798j. (1calorie = 4.187j)
My distance is 1mi or 1609m
My weight is 217lb or 97.65kg

Now,
My question is, if I find the work done by moving a 97kg mass 1609meters in joules, and then dividing by my calorie intake (in joules)...does this give me what I want?

If so,

Can anyone give me some pointers as to setting up a free body diagram/ finding the work

If not,

Could some one point out the holes in this problem, or do I scrap it completely

Again,

All I want to do is find how many miles I would have to run to burn the calories aforementioned.