Question

Explain the meaning of inertia.Give appropriate example to explain the inertia of rest and inertia of motion​

Answer 1

Some examples of inertia of motion are as follows: ... Explanation: due to inertia of motion the motion of all passengers is equal to the motion of the train and as soon as the brake is applied the passengers feet being in contact with the train floor stops while the upper part falls forward due to inertia of motion.

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Answer 2

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ANSWER:-

Inertia is the resistance, of any physical object, to any change in its velocity. This includes changes to the object's speed, or direction of motion.

INERTIA OF MOTION

Some examples of inertia of motion are as follows:

(a) A person trying to get down from a running bus falls forward.

Explanation: when the person gets down from a running bus the upper part of his body is still in motion and due to this inertia of motion the body topples forward even though he has set his foot on the ground.

(b) Passengers travelling by train fall forward when the train applies sudden brake

Explanation: due to inertia of motion the motion of all passengers is equal to the motion of the train and as soon as the brake is applied the passengers feet being in contact with the train floor stops while the upper part falls forward due to inertia of motion.

(c) Ripe fruits fall from the trees in the direction of wind.

Explanation: the tree sways along with the wind and the inertia of motion makes these fruits sway along with the tree branches. The fruits fall off due to the inertia of motion along the direction of wind.

(d) The swirling of milk in a glass continues even after the stirring is stopped.

Explanation: a person stirring a spoonful of sugar into a glass of milk finds the milk continuing the swirling movement even after the stirring is stopped and this happens due to the inertia of motion of the milk inside the glass.

(e) A toy thrown up by a boy inside a moving train moves along with the train

Explanation: the toy also attains the same velocity as the train inside the train and thus would move along with the train when thrown up. This will apply only when the train is moving with a constant speed or it might fall forward or backward if the speed is altered.

Some examples of inertia of rest:

1) when you shake a branch the leaves get detached. 

2) when you beat a carpet the dust particles come out.

3) when you are sitting in a car and it starts moving you lean backward. 

4.) If pulled quickly, a tablecloth can be removed from underneath of dishes. The dishes have the tendency to remain still as long as the friction from the movement of the tablecloth is not too great.

5.) Shaking a bottle of ketchup. When bringing the bottom down, the suddenly stopping it, inertia is what causes the ketchup to come out of the bottle.

6.) A balloon in a car will appear to move when the car moves forward, but the balloon is actually attempting to stay in the place it was, it is only the car that is moving.

7.) When a car is abruptly accelerated, drivers and passengers may feel as though their bodies are moving backward. In reality, inertia is making the body want to stay in place as the car moves forward.

Inertia of rest is an object staying where it is placed and it will stay there until you or something else moves it.

8.) Inertia of rest is an object staying where it is placed and it will stay there until you or something else moves it.

I hope this answer may help you.

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