Give some examples for interia of rest , inertia of motion and inertia of direction
Answers
ANSWER :
INERTIA :
Inertia is the resistance property of a body to resist the change in state of a body.
Note :
Measure of inertia is mass
Dimension formula is
S.I unit of Inertia is kg
There are three types of Inertia
1. Inertia of rest : The inertia (resistance) offered by a body to change it's change of rest.
Examples :
When a blanket is given a sudden J erk , the dust particles fall off.
When you hit a striker on a pile of carrom counters , you will observe that only the lowest counter moves away.
When things are kept on a cloth on dining table , the cloth can be removed without any disturbance to things by removing suddenly.
2. Inertia of motion : The inertia offered by a body to change it's state of uniform motion is called inertia of motion.
Examples :
When we switch off a fan , it continues to rotate even after sometime.
An athlete runs for some distance before taking a long jump. In this way , the athlete gains momentum due to inertia of motion.
Satellites move in space due to inertia of motion.
3. Inertia of direction : The resistance or inertia offered by a body to change it's direction of motion is called Inertia of direction.
Examples :
When a stone tied to one end of a string is whirled and the string breaks suddenly , the stone flies off along the tangent of the circle.
When a ball is thrown up , it goes up and falls down back again in same direction.