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प्रश्न
What do you understand by the term inertia?
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उत्तर
“Inertia is the property of a body due to which it cannot change its state (rest or of uniform motion) itself.” Until some external force is applied to it.“
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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?
What will be the momentum of a body of mass ‘m’ which is moving with a velocity V ?
A body of mass 25 kg has a momentum of 125 kg.m/s. Calculate the velocity of the body.
Calculate the momentum of the following :
(a) an elephant of mass 2000 kg moving at 5 m/s
(b) a bullet of mass 0.02 kg moving at 400 m/s
The unit of measuring momentum of a moving body is :
Give two examples to show that greater the mass, greater is the inertia of the body.
Explain the following :
It is advantageous to run before taking a long jump .
Explain the following:
Why does a pillion rider fall forward, when the driver of a two-wheeler suddenly applies the brakes?
Two bodies have a mass ratio of 3:4 The force applied on the bigger mass produces an acceleration of 12 ms-2. What could be the acceleration of the other body, if the same force acts on it.
Two blocks of masses 8 kg and 2 kg respectively lie on a smooth horizontal surface in contact with one other. They are pushed by a horizontally applied force of 15 N. Calculate the force exerted on the 2 kg mass.
