- #1
coglon
- 8
- 0
Energy Question -- Burning off Breakfast
Im not to good at physics to begin with, and I've been having a lot of trouble with this question:
"How many steps does it take to wear off your breakfast?"
First of all this question doesn't give you any starting points with variables and such and I really have no clue what kind of equation to use.
I am using Shredded Wheat & Bran as my breakfast (30g per serving (160ml)) without milk and this contains 450kJ from the back of the box nutritional facts.
I assumed that each step would take approx. 1 meter in length and that the person burning off the breakfast weights 70kg. I don't know if this info is relavent to the question but I am kinda stuck.
I thought if I could figure out how many joules were burn each step by this person I could divide that by the total joules of breakfast and figure out how many steps it will take
I would think that W=Fd would be the starting equation but I don't have a variable with Newtons
Im not to good at physics to begin with, and I've been having a lot of trouble with this question:
"How many steps does it take to wear off your breakfast?"
First of all this question doesn't give you any starting points with variables and such and I really have no clue what kind of equation to use.
I am using Shredded Wheat & Bran as my breakfast (30g per serving (160ml)) without milk and this contains 450kJ from the back of the box nutritional facts.
I assumed that each step would take approx. 1 meter in length and that the person burning off the breakfast weights 70kg. I don't know if this info is relavent to the question but I am kinda stuck.
I thought if I could figure out how many joules were burn each step by this person I could divide that by the total joules of breakfast and figure out how many steps it will take
I would think that W=Fd would be the starting equation but I don't have a variable with Newtons