Physics

To find how much time has passed, we can use the relationship between the decrease in gravitational potential energy and the vertical distance fallen, and then find the time it takes for the object to fall that distance.

 

Calculate the height fallen

The change in gravitational potential energy () is related to the height fallen () by the equation:

where:

(decrease in gravitational potential energy),

(mass),

(acceleration due to gravity),

is the vertical distance fallen.

 

Rearranging the equation to solve for :

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