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I have a ton of data, but I'm just going to show you what I have done via this picture; hopefully you can see it.

So the answer I came up with for the total amount of work done on a medium sized log was 977J. When I convert this to calories (977J*.239cal) I get 233cals. There's no way I burned 239 calories lifting one log .3m up, and walking it 3m away.

I used the 1 joule = 0.239005736 calories.

What am I doing wrong?