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प्रश्न
Dust particles are removed from a carpet by beating it.
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उत्तर
The part of the carpet where the stick strikes comes in motion at once, while the dust particles settled on it remain in the state of rest due to inertia of rest. Thus, a part of the carpet moves ahead with the stick leaving behind the dust particles that fall down due to gravity.
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संबंधित प्रश्न
Describe the term ‘inertia’ with respect to motion.
Why do the passengers in a bus tend to fall backward when it starts suddenly ?
When a tree is shaken, its fruits and leaves fall down . Why ?
Name the factor on which the inertia of a body depends and state how does it depend on the factor stated by you .
Give two examples to show that greater the mass, greater is the inertia of the body.
Why does a person fall when he jumps out from a moving train ?
Inertia of a body depends on
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.
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)
