LAWS OF MOTION -
FORCE-
Force is defined as a push or pull which changes the state of rest.
E.G-
1. Force can change speed of an object.
2. Force can change the direction of motion of object.
3.force can change the shape of object.
INERTIA-
The inherent property of a material body by virtue of which it cannot change, by itself , its state of rest or of uniform motion in a Straight line is called inertia.
DIFFERENT TYPES OF INERTIA-
1. INERTIA OF REST-
The tendency of a body to remain in its position of rest is called inertia of rest.
2.INERTIA OF MOTION-
The tendency of a body to remain in its state of uniform motion in a straight line is called inertia of motion.
3.INERTIA OF DIRECTION-
The inability of a body to change by itself its direction of motion is called inertia of direction.
LINEAR MOMENTUM-
Momentum is equal to product of mass and velocity of the body.
P=MV
where P= momentum of body
V= velocity of body
*It is a vector quantity.
UNIT-
P= MV = Kg m/s (S.I)
P= MV = gcm/s
DIMENSION- P=MV= [M L T-1]
NEWTON'S LAWS OF MOTION-
FIRST LAW-
Every body continues in its state of rest or of uniform motion in a 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 linear momentum of a body is directly proportional to the applied force and the change takes place in the direction of applied force.
THIRD LAW-
To every action,there is always an equal and opposite reaction.
https://amzn.to/2ZxL9kK
FORCE= MASS X ACCELERATION
UNITS-
FORCE= NEWTON (S.I.)
FORCE= DYNE (C.G.S)
FORCE-
Force is defined as a push or pull which changes the state of rest.
E.G-
1. Force can change speed of an object.
2. Force can change the direction of motion of object.
3.force can change the shape of object.
INERTIA-
The inherent property of a material body by virtue of which it cannot change, by itself , its state of rest or of uniform motion in a Straight line is called inertia.
DIFFERENT TYPES OF INERTIA-
1. INERTIA OF REST-
The tendency of a body to remain in its position of rest is called inertia of rest.
2.INERTIA OF MOTION-
The tendency of a body to remain in its state of uniform motion in a straight line is called inertia of motion.
3.INERTIA OF DIRECTION-
The inability of a body to change by itself its direction of motion is called inertia of direction.
LINEAR MOMENTUM-
Momentum is equal to product of mass and velocity of the body.
P=MV
where P= momentum of body
V= velocity of body
*It is a vector quantity.
UNIT-
P= MV = Kg m/s (S.I)
P= MV = gcm/s
DIMENSION- P=MV= [M L T-1]
NEWTON'S LAWS OF MOTION-
FIRST LAW-
Every body continues in its state of rest or of uniform motion in a 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 linear momentum of a body is directly proportional to the applied force and the change takes place in the direction of applied force.
THIRD LAW-
To every action,there is always an equal and opposite reaction.
https://amzn.to/2ZxL9kK
LAWS OF MOTION
FORCE= MASS X ACCELERATION
UNITS-
FORCE= NEWTON (S.I.)
FORCE= DYNE (C.G.S)
RELATION BETWEEN NEWTON AND DYNE-
1 NEWTON=100000 DYNE
According to Newton's second law,
F=dp/dt
IMPULSE-
It is defined as the product of the force and the time for which it acts and is equal to the change in momentum.
IMPULSE= FORCE X TIME DURATION= TOTAL CHANGE IN MOMENTUM
*Impulse is a vector quantity.
UNITS-
Impulse=Kg m/s (s.i)
Impulse=g cm/s (c.g.s)
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