Which of the following is NOT an example of inertia at rest?

Key Points

• Option 4 is NOT an example of inertia at rest. It refers to the sudden application of brakes in a vehicle, which is an example of inertia of motion, not inertia at rest.
• Inertia at rest is the tendency of an object to remain at rest unless acted upon by an external force.
• Examples of inertia at rest include falling down of dust particles while dusting a cloth (option 1), falling down backward when a vehicle starts immediately (option 2), and detachment of leaves/fruits due to shaking (option 3).

Additional Information

• Inertia is a property of matter that causes it to resist changes in its state of motion.
• The concept of inertia is a key principle in Newton's First Law of Motion, which states that an object will remain at rest or in uniform motion unless acted upon by an external force.
• Understanding inertia helps explain everyday phenomena such as why passengers lurch forward in a car when it suddenly stops (inertia of motion) or why a book stays on a table unless pushed (inertia at rest).