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प्रश्न
Give one example of each of the following :
(a) inertia of rest, and (b) inertia of motion .
उत्तर
Examples of inertia of rest: A coin placed on top of a card remains in place when the card is slightly and quickly jerked horizontally.
Example of inertia of motion: A ball thrown vertically upwards by a person in a moving train comes back to his hand.
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संबंधित प्रश्न
Which of the following has more inertia:
- a rubber ball and a stone of the same size?
- a bicycle and a train?
- a five-rupees coin and a one-rupee coin?
In the following example, try to identify the number of times the velocity of the ball changes:
“A football player kicks a football to another player of his team who kicks the football towards the goal. The goalkeeper of the opposite team collects the football and kicks it towards a player of his own team”.
Also identify the agent supplying the force in each case.
Why do you fall in the forward direction when a moving bus brakes to a stop and fall backwards when it accelerates from rest?
With which physical quantity should the speed of a running bull be multiplied so as to obtain its momentum ?
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?
Explain the following:
Why is it difficult to walk on marshy ground?
Multiple Choice Question. Select the correct option.
Inertia is the property of a body by virtue of which the body is:
Inertia of a body depends on
A heavy truck and bike are moving with the same kinetic energy. If the mass of the truck is four times that of the bike, then calculate the ratio of their momenta. (Ratio of momenta = 2:1)
