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Force and Laws of Motion - Coggle Diagram
Force and Laws of Motion
Force
Force Affects Motion
Newton's Second Law of Motion
Newton's Third Law of Motion
Newton's First Law of Motion
Types of Forces
Unbalanced Force
Balanced Force
Newton's First Law of Motion
A body continues to remain in its state of rest or uniform motion along a straight line unless an external unbalanced force acts on it. It is also called the 'Law of Inertial'.
Inertia
: Inertia is that property of a body by virtue of which it opposes any change in its state of rest, state of motion or direction. A body which has greater mass, has a greater inertia. In other words mass of an object is the measure of its inertia.
Newton's Third Law of Motion
Action and Reaction Forces:
They are equal and opposite forces acting on different bodies.
So, Action Force = -Reaction Force
Law of Conservation of Momentum:
The total momentum of a system before and after collision is the same.
Therefore, Masses m1 and m2 have initial and final velocities u1, u2, v1 and v2.
So, m1u1+m2u2 = m1v1+m2v2
This law states that for each and every action there is an equal and opposite reaction. Action and reaction force act on different bodies.
Thus, Reaction Force = -Action Force
Newton's Second Law of Motion
It states that the external force acting on a body is directly proportional to the rate of change in its momentum.
Then, F∝ Change in Momentum/ Time
or F∝ mv-mv/t
Momentum:
The product of mass and velocity of an object is called momentum. It is a vector quantity and is donated by 'P'.
So, P = mv
Impulse:
It is defined as the product of force and time. It is thus equal to change in momentum.
So, Impulse= Change in Momentum
= Force * Time