Homework Help: physics

Posted by Isabel-A on Saturday, November 13, 2010 at 5:34am.

The label on a candy bar says 410 Calories.Assuming a typical efficiency for energy use by the body, if a 74kg person were to use the energy in this candy bar to climb stairs, how high could she go?

physics - bobpursley, Saturday, November 13, 2010 at 8:37am
Convert the Calories (kcal) to Joules, then set equal to work (mg*height)

1.72E6joules=74*9.8*height

A high walk.

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