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प्रश्न
Define static friction
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उत्तर
The maximum force exerted by a surface on a body so long as it remains stationary is called the force of static friction.
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संबंधित प्रश्न
Friction opposes the ______ between the surfaces in contact with each other.
What is the cause of friction?
List three ways of reducing friction.
Define sliding friction
A body needs a force F1 just to start moving on a surface, a force F2 to continue its motion and a force F3 to roll on the surface. What is
- the static friction
- sliding friction and
- rolling friction? State whether F2 is equal, less than or greater than (1) F1 and (2) F3.
Fill in the blank.
The force of friction acting between two bodies in contact while at rest is known as ................ friction.
Tick the most appropriate answer.
Friction for an object can be reduced by
Answer the following in detail.
Define friction and explain how it is useful to us.
Whenever the surfaces in contact tend to move or move with respect to each other, the force of friction comes into play
Friction depends on the ______ of two surfaces in contact.
