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प्रश्न
Why does a coin, placed on a card, drop into the tumbler when the card is rapidly flicked with a finger?
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उत्तर
The reason is that when the card is flicked, a momentary force acts on the card, so it moves away. However, the coin kept on it does not share the motion at once and it remains stationary at its place due to the inertia of rest. The coin then falls down into the tumbler due to the pull of gravity.
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संबंधित प्रश्न
In the following example, try to identify the number of times the velocity of the ball changes:
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Also identify the agent supplying the force in each case.
Explain why some of the leaves may get detached from a tree if we vigorously shake its branch.
Why do you fall in the forward direction when a moving bus brakes to a stop and fall backwards when it accelerates from rest?
What name is given to the product of mass and velocity of a body ?
Fill in the following blank with suitable word :
(a) ………………is a measure of the inertia of a body.
A body of mass 25 kg has a momentum of 125 kg.m/s. Calculate the velocity of the body.
On what factor does the inertia of a body depend ? Which has more inertia, a cricket ball or a rubber ball of the same size ?
Explain the following :
When a train suddenly moves forward , the passenger standing in the compartment tends to fall backwards .
What do you understand by the term inertia?
Multiple Choice Question. Select the correct option.
Inertia is the property of a body by virtue of which the body is:
