What is the total mechanical energy of an object in free fall just before it hit

What is the total mechanical energy of an object in free fall just before it hits the ground? (2022)

What is the total mechanical energy of an object in free fall just before it hits the ground? (2022)

Step 1: Understand that total mechanical energy is the sum of potential energy and kinetic energy.
Step 2: Recognize that when an object is in free fall, it starts with potential energy and no kinetic energy at the top.
Step 3: As the object falls, potential energy decreases while kinetic energy increases.
Step 4: Just before the object hits the ground, all potential energy has been converted into kinetic energy.
Step 5: Therefore, the total mechanical energy just before hitting the ground is equal to the initial potential energy at the starting height.

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