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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?
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उत्तर
Since mass is proportional to inertia, the greater the mass, the greater will be the inertia.
- A stone has more mass than a rubber ball of equal size. Since mass is a measure of inertia, a stone has more inertia than a rubber ball.
- A train has more inertia than a bicycle since it is much heavier.
- A five-rupee coin is heavier than a one-rupee coin. Therefore, the inertia of a five-rupees coin is more than the inertia of a one-rupee coin.
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संबंधित प्रश्न
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.
What name is given to the product of mass and velocity of a body ?
Name the property of bodies (or objects) to resist a change in their state of rest or of motion.
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 ?
What is meant by the term inertia?
What do you understand by the term inertia?
What are inertia kinds?
Explain the following:
Why do fruits fall off the branches in the strong wind?
Assertion & Reasoning
- Assertion: The value of ‘g’ decreases as height and depth increase from the surface of the Earth.
- Reason: ‘g’ depends on the mass of the object and the Earth.
