Newton's laws of motion
Answers
Newton laws of Motion:-
First Law (Law of Inertia):
Everybody continues in its state of rest or of uniform motion in a straight line unless it is compelled by some external force to change that state.
Second Law:
The rate of change of momentum of a body is directly proportional to the impressed force and takes place in the direction of the force.
So, F= dp/dt
This results force acting a body F is equal to the mass of the body m times acceleration of the body a.
So, F = ma
Third Law:
'Action - Reaction' Pair when a Man Jumping From a Boat
To Every action there is an equal and opposite reaction.
FAB = - FBA
Impulse:- Impulse of a force is defined as the change in momentum produced by the force and it is equal to the product of force and the time for which it acts.
So, J = Ft
= mv – mu
NEWTON'S LAWS OF MOTION
NEWTON'S FIRST LAW OF MOTION :
An object tells to being in a state of uniform motion unless an unbalanced force is exerted upon it.
NEWTON'S SECOND LAW OF MOTION:
The force acting on an object is equal to the mass of that object times its acceleration.
F=m×a
When F =Force
M=Mass
A=Acceleration
Unit of motion = Newton (n)
NEWTON'S THIRD LAW OF MOTION:
To every action is an equal and opposite reaction