Newton’s 1st law of motion – Definition, Examples, FAQ
Hello guys we know that, Sir Aristotle said that force is required to displace the object from one place to another. Detailed illustration of the same is studied by Sir Newton and he proposed the laws of motion to explain the concept of mechanics in more details.
First law of motion explain us the idea of inertia, that unbalanced force is necessary to change the state of object from rest to motion or from motion to rest. This applied force should overcome inertia of object so change the state of object.
Newton’s first law states that,
‘An object continuous to be in state of rest or state of uniform motion along straight line unless and external unbalanced force acts on it.’
Newton’s first law of motion is the basic of the mechanics. This law explains the usefulness of force and energy. It also helps us to understand the state of bodies can be possessed.
Important FAQ:
Q.1) What do you mean by inertia?
Answer: Inertia is defined as the tendency of body to resist in any change of its state. Inertia is of three types
1.) Inertia at rest : Tendency to remain in state of rest
2.) Inertia of motion : Tendency to remain in state of motion
3.) Inertia of unidirection : Tendency to remain in state of unidirection
Q.2) What are the basic types of force?
Answer: Force are basically categorised as,
1.) Contact force: The force which acts between two objects with actual contact between them. Following are some examples of contact forces
Muscular force, frictional force etc.
2.) Non-Contact force: The force which acts between two objects without actual contact between them. Following are some examples of contact forces,
Gravitational force, electrostatic force, magnetic force etc.
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