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प्रश्न
Give an example to illustrate the existence of the force of friction.
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उत्तर
If we stop paddling our bicycle, it gradually slows down and ultimately it stops after traveling a certain distance. This is due to the frictional force between bicycle and ground.
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संबंधित प्रश्न
Explain why sportsmen use shoes with spikes.
When a glass rod is rubbed with a piece of silk cloth the rod ______.
What is the cause of friction?
Give three examples to illustrate that friction is a necessary evil.
Fill in the blank.
Rolling friction offers ............. resistance than sliding friction.
Tick the most appropriate answer.
Force of friction comes into play when a/an
A moving body comes to rest due to friction alone.
Rolling friction is slightly greater than sliding friction.
How do you feel when you touch a nail immediately after it is hammered into a wooden plank? Why?
Assertion: Friction always opposes the motion.
Reason: Whenever one surface moves or tries to move over another surface, the force of friction starts acting on the surfaces.
