Explain the following:
(I) Inertia of rest
(ii) Inertia of motion
(iii) Inertia of direction
(I) Inertia of rest
(ii) Inertia of motion
(iii) Inertia of direction
Inertia is the natural tendency of an object to resist a change in its state of motion or of rest.
Note: The mass of an object is a measure of its inertia
Inertia of direction: Inertia of direction is the fundamental property possessed by a body to oppose any change in its direction of motion. Or in other words, the body does not want to change its directions of motion but wants to continue its state of motion in a straight line. This is inertia of motion.
Example:
When a bus takes a sharp turn to its left, we move towards the right.
When a car moves towards left, we turn to the right.
Inertia of motion: Inertia of motion is the fundamental property possessed by a body to oppose any change in its motion. Or in other words, the body does not want to change its motion, but wants to continue its state of motion is called inertia of motion.
Example: As the passenger jumps out of the moving bus his body possesses the inertia of motion (Kinetic inertia).
Due to inertia of motion the passenger tends to move so there is a possibility of falling down and getting hurt if he cannot balance it. So it is dangerous to jump from a moving bus.
What is inertia of rest (static inertia)?
Inertia of rest (static inertia) is the fundamental property possessed by a body to oppose any change in its state of rest. Or in other words, the body does not want to change its state of rest, but wants to continue its state of rest is called inertia of rest (static inertia).
Example: The leaves get detached from a tree if we shake its branch vigorously.
Inertia is the natural tendency of an object to resist a change in its state of motion or of rest.
Note: The mass of an object is a measure of its inertia
Inertia of direction: Inertia of direction is the fundamental property possessed by a body to oppose any change in its direction of motion. Or in other words, the body does not want to change its directions of motion but wants to continue its state of motion in a straight line. This is inertia of motion.
Example:
When a bus takes a sharp turn to its left, we move towards the right.
When a car moves towards left, we turn to the right.
Inertia of motion: Inertia of motion is the fundamental property possessed by a body to oppose any change in its motion. Or in other words, the body does not want to change its motion, but wants to continue its state of motion is called inertia of motion.
Example: As the passenger jumps out of the moving bus his body possesses the inertia of motion (Kinetic inertia).
Due to inertia of motion the passenger tends to move so there is a possibility of falling down and getting hurt if he cannot balance it. So it is dangerous to jump from a moving bus.
What is inertia of rest (static inertia)?
Inertia of rest (static inertia) is the fundamental property possessed by a body to oppose any change in its state of rest. Or in other words, the body does not want to change its state of rest, but wants to continue its state of rest is called inertia of rest (static inertia).
Example: The leaves get detached from a tree if we shake its branch vigorously.
