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

₹0.0

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

Options:

Correct Answer: Total energy is conserved

Exam Year: 2022

Solution:

The total mechanical energy of an object in free fall is conserved, meaning it remains constant as potential energy converts to kinetic energy.

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.

No concepts available.