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Newton's three laws of motion

Sir Isaac Newton's three laws of motion are fundamental principles in classical physics that describe the relationship between the motion of an object and the forces acting on it. Here, I'll explain each of Newton's laws with examples!

1. Newton's First Law of Motion (Law of Inertia):

Example: Imagine a book resting on a table. It will remain at rest until an external force, like pushing it, is applied. Similarly, a moving car will keep moving at a constant speed unless you apply the brakes, which is an external force.

2. Newton's Second Law of Motion (Law of Acceleration):

Example: If you push a shopping cart and then push a car with the same force, the cart will accelerate more because it has less mass than the car. The acceleration is greater for the cart because the force-to-mass ratio is higher.

3. Newton's Third Law of Motion (Law of Action-Reaction):

Example: When you walk, your foot pushes backward on the ground (action), and the ground pushes your foot forward (reaction). In space, when a rocket expels exhaust gases downward (action), the rocket moves upward with an equal force (reaction).

Published on: Sep 15, 2023, 12:28 AM  


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