High School

Assuming a typical efficiency for energy use by the body, if a 67 kg person were to use the energy in this candy bar to climb stairs, how high could she go? Express your answer in meters.

Answer :

Based on the formula for work done, the height to which the 67 kg person can climb after eating the Candy bar is 3.07 m.

What is the energy in Joues present kin the Candy bar?

The energy in Joues present kin the Candy bar is determined by using the conversion factor of calories to Joules.

The conversion factor is: 1 calorie = 4.2 joules

480 calories = 4.2 * 480 joules

480 calories = 2016 Joules

Work done by the 67 kg person is calculated using the formula:

Work done or energy = mgh

where;

m is the mass in kg = 67 kg

g is the acceleration due to gravity = 9.81 m/s²

h is height = ?

Therefore, h = work done/mg

h = 2016 / (9.81 * 67)

h = 3.07 m

Learn more about work done at: https://brainly.com/question/28894116

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Complete question:

The label on a Candy bar says 480 Calories. Assuming a typical efficiency for energy use by the body, if a 67kg person were to use the energy in this candy bar to climb stairs, how high could she go?