EASY
11th West Bengal Board
IMPORTANT
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Write the relation between angle of friction and coefficient of friction.

Important Questions on Equilibrium of Concurrent Forces and Friction

EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 7 - Equilibrium of Concurrent Forces and Friction>EXERCISE>Q 16
Does limiting friction between two surfaces depend on the area of contact between the surfaces?
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 7 - Equilibrium of Concurrent Forces and Friction>EXERCISE>Q 18
When does the force of friction between two surfaces become zero?
MEDIUM
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 7 - Equilibrium of Concurrent Forces and Friction>EXERCISE>Q 21
When a bicycle is in motion, in which directions do the forces of friction exerted by the ground on the two wheels act?
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 7 - Equilibrium of Concurrent Forces and Friction>EXERCISE>Q 22
Why friction is called self-adjusting force?
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 7 - Equilibrium of Concurrent Forces and Friction>EXERCISE>Q 28

Explain your answer.:

You are abandoned in a frictionless horizontal plane. You can come back by:

EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 7 - Equilibrium of Concurrent Forces and Friction>EXERCISE>Q 29
Once you are able to start a body moving, it is easier to maintain the motion. Why ?
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 7 - Equilibrium of Concurrent Forces and Friction>EXERCISE>Q 34
In which condition does a large number of concurrent forces produce equilibrium ?
MEDIUM
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 7 - Equilibrium of Concurrent Forces and Friction>EXERCISE>Q 1
What is friction ? What do you understand by 'co-efficient of friction' ? State the laws of static friction and describe suitable experiments to verify them.