Physics

To solve the problem, let's break it down step by step:

 

Gravitational Potential Energy Equation

The gravitational potential energy (GPE) is given by: 

 

where:

(mass),

(acceleration due to gravity),

is the height.

 

The change in gravitational potential energy () is given as . Since the object falls, this is a decrease in GPE. 

 

Change in Height

The change in gravitational potential energy can also be written as:

Substitute the known values:

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