EASY
11th West Bengal Board
IMPORTANT
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Is kinetic friction less or greater than static 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 14
A body of mass $m$ is moving on a horizontal surface having a coefficient of friction μ. What is the force of friction acting on the body?
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 14
Write the relation between angle of friction and coefficient of 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 15
Can coefficient of friction be greater than 1 in any case?
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 17
Mention one case where friction is advantageous and one case where it is disadvantageous.
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?
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 19
A tug of war can never be won on a perfectly smooth ground.
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 20
What happens to the energy expended against friction?