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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
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?
What name is given to the product of mass and velocity of a body ?
Describe the term ‘inertia’ with respect to motion.
Why do the passengers in a bus tend to fall backward when it starts suddenly ?
The unit of measuring momentum of a moving body is :
A Honda City car, a Maruti Alto car, A Tata Nano car and a Mahindra Scorpio car, all are running at the same speed of 50 m/s under identical conditions. If all these cars are hit from behind with the same force and they continue to move forward, the maximum acceleration will be produced in :
The property of inertia is more in :
Explain the following:
Why do fruits fall off the branches in the strong wind?
Explain the following:
Why does a pillion rider fall forward, when the driver of a two-wheeler suddenly applies the brakes?
