Tell me Newtons Law
Asked by gaurav.parik • 11 days ago
Tell me Newtons Law
Answers
Physics - Newton's Laws of Motion
Newton's Laws of Motion are three fundamental principles that describe the relationship between an object, the forces acting upon it, and its motion. They are the foundation of classical mechanics.
Newton's First Law: Law of Inertia
An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by a force.
Example
A book on a table will remain at rest unless someone picks it up or pushes it. Similarly, a hockey puck sliding on ice will continue to slide at a constant velocity until friction or another force slows it down or changes its direction.
Newton's Second Law: Law of Acceleration
The acceleration of an object is directly proportional to the net force acting on the object, is in the same direction as the net force, and is inversely proportional to the mass of the object.
Mathematically, this is represented as F = ma, where F is the net force, m is the mass, and a is the acceleration.
Example
If you push a shopping cart with a certain force, it will accelerate. If you double the force, the acceleration doubles. If you fill the cart with twice as much mass, the acceleration will be half as much.
Newton's Third Law: Law of Action-Reaction
For every action, there is an equal and opposite reaction. This means that if object A exerts a force on object B, then object B exerts an equal force in the opposite direction on object A.
Example
When you jump, you exert a force on the Earth. The Earth exerts an equal and opposite force back on you, which propels you into the air. Since the Earth has a very large mass, its acceleration due to your jump is negligible.
These laws are essential for understanding how objects move and interact with each other. They apply to everyday situations and are fundamental in fields like engineering and physics.
Your Answer
Loading...