Question

A skier with a mass of 49.1 kg stands on top of a hill at a height of 14.7 m. What is her gravitational potential energy?

Answer 1

Formula for Gravitational Potential Energy:

`GPE=mgh`

Gravitational potential energy(measured in joules) = mass(measured in kg) * acceleration(measured in 9.8 m/s^2 due to gravity) * height(measured in meters)

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Given:

`m=49.1kg`

`h=14.7m`

`g=9.8m/s^2` (due to gravity)

`GPE=?`

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Finding Gravitational Potential Energy:

`GPE=mgh`

`GPE=49.1*9.8*14.7`

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Answer:

`\fbox{7073.346 Joules}`