Newton's Laws of Motion
Isaac Newton 3 Laws of MotionThe Laws of Motion were given by Isaac Newton. You can also call them as Newton 3 Laws of Motion. He proposed The 3 Laws of Motion.
If you want to know What are the 3 Laws of Motion then here they are. They are known as first second and third laws of motion:First law of motion: This law states that a body remains at rest or in motion until and unless an unbalanced force is applied on it. Or in the other way it says that every body resists the change in its inertia. Inertia is the property of a body to remain at rest or in motion.
This law is also known as law of inertia. Inertia of an object depends on its mass. More the mass higher is its inertia. Eg a car has more inertia than a man. We can understand it as: it is more difficult to stop a car moving with the same speed as that of man than the man as mass of car is more.
Example: when we travel in a bus and breaks are applied then we get a jerk in forward direction. This is because we are in the state of motion and due to inertia our body wants to be in that state. So as the bus stops we get a forward jerk. Similarly when it starts moving suddenly then we get a backward jerk due to inertia of rest.
Second law of motion: It says that acceleration produced on a body due to force is directly proportional to the force and is in the direction of the force. Force="mass" * accelerationOr F="ma"Unit of force is kg m s-2 or newton (N).Third law of motion:This law states that for every action there is an equal and opposite reaction. Or we can say that whenever a force is applied on a body B by body A then body B will immediately apply a force on A which will be equal in magnitude and opposite in direction as that applied by A on B.
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For example when a bullet is fired from a gun then gun applies a force on bullet in forward direction and immediately the bullet applies a force on gun of equal magnitude but in backward direction. Due to this gun recoils. But the movement of dun is less visible even when same force was applied because mass of gun is more than that of bullet which reduces its acceleration.