a 60.0-kg person walks from the ground to the roof of a 74.8-m-tall building. how much gravitational potential energy does she have at the top of the building?
PE = mgh = 60 * 9.8 * 74.8
=43,982.4 J
Chung and Plug
To calculate the gravitational potential energy, we need to use the formula:
Gravitational Potential Energy (PE) = mass (m) * gravity (g) * height (h)
Given:
Mass (m) = 60.0 kg
Height (h) = 74.8 m
Gravity (g) = 9.8 m/s^2 (acceleration due to gravity on Earth)
Using the given values, we can calculate the gravitational potential energy:
PE = 60.0 kg * 9.8 m/s^2 * 74.8 m
Now we can solve for PE:
PE = 58,296 J (rounded to the nearest whole number)
Therefore, the person has approximately 58,296 Joules of gravitational potential energy at the top of the building.
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PE = mgh = 60 * 9.8 * 74.8
just plug and chug.