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प्रश्न
Tick the most appropriate answer
Friction always
विकल्प
supports motion
starts motion
encourages motion
opposes motion
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उत्तर
opposes motion
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संबंधित प्रश्न
Suppose your writing desk is tilted a little. A book kept on it starts sliding down. Show the direction of frictional force acting on it.
Give examples to show that friction is both a friend and a foe.
When a glass rod is rubbed with a piece of silk cloth the rod ______.
State two factors which directly affect the force of friction.
Define static friction
Define sliding friction
Fill in the blank.
.................... is the SI unit of force.
Fill in the blank.
Sliding friction and rolling friction are types of .................. friction.
Answer the following in detail.
Describe three different ways by which friction can be increased to help us in various situations?
Complete the analogy.
Knot in a thread : _____ friction : : Ball bearing : _____ friction
