Class 11 Exam > Class 11 Questions > Static friction forcea)increases until the bo...
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Static friction force
- a)increases until the body starts to move
- b)decreases before moving and increases later
- c)remains constant
- d)is a strong interaction force
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Static friction forcea)increases until the body starts to moveb)decrea...
Explanation:It is the maximum friction, where a body just starts to move over the surface. for example. A large block of mass m is placed on a horizontal table. Apply a small force. the block does not move due to the friction force which balances the applied force. Now Gradually increase the applied force untill it start moving. This maximum applied force acting in opposite direction is called as Static Friction.
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Static friction forcea)increases until the body starts to moveb)decrea...
Static friction force:
Static friction is a type of force that exists between two surfaces in contact with each other, but not in relative motion. It is a force that opposes the motion or impending motion of an object.
Explanation:
The static friction force between two surfaces depends on several factors, including the nature of the surfaces and the force pushing the surfaces together. When an external force is applied to an object at rest, the static friction force adjusts to prevent the object from moving.
Increases until the body starts to move:
The correct answer is option 'A' - the static friction force increases until the body starts to move. This is because static friction adjusts itself to match and oppose the applied force, up to a certain maximum value called the maximum static friction. The maximum static friction is determined by the nature of the surfaces in contact.
Maximum static friction:
The maximum static friction is the maximum force that can be exerted by the static friction before the object starts moving. It is directly proportional to the normal force between the surfaces and is given by the equation:
maximum static friction = coefficient of static friction * normal force
The coefficient of static friction is a constant that depends on the nature of the surfaces in contact. It represents the roughness or smoothness of the surfaces.
Threshold force:
When an external force is applied to an object at rest, the static friction force initially matches and opposes the applied force. As the applied force increases, the static friction force also increases, until it reaches its maximum value. Once the applied force exceeds the maximum static friction, the object starts to move and the static friction force is no longer present.
Conclusion:
In summary, the static friction force increases until the body starts to move. It adjusts itself to match and oppose the applied force, up to a certain maximum value. Once the applied force exceeds the maximum static friction, the object starts to move and the static friction force is no longer present.
Static friction is a type of force that exists between two surfaces in contact with each other, but not in relative motion. It is a force that opposes the motion or impending motion of an object.
Explanation:
The static friction force between two surfaces depends on several factors, including the nature of the surfaces and the force pushing the surfaces together. When an external force is applied to an object at rest, the static friction force adjusts to prevent the object from moving.
Increases until the body starts to move:
The correct answer is option 'A' - the static friction force increases until the body starts to move. This is because static friction adjusts itself to match and oppose the applied force, up to a certain maximum value called the maximum static friction. The maximum static friction is determined by the nature of the surfaces in contact.
Maximum static friction:
The maximum static friction is the maximum force that can be exerted by the static friction before the object starts moving. It is directly proportional to the normal force between the surfaces and is given by the equation:
maximum static friction = coefficient of static friction * normal force
The coefficient of static friction is a constant that depends on the nature of the surfaces in contact. It represents the roughness or smoothness of the surfaces.
Threshold force:
When an external force is applied to an object at rest, the static friction force initially matches and opposes the applied force. As the applied force increases, the static friction force also increases, until it reaches its maximum value. Once the applied force exceeds the maximum static friction, the object starts to move and the static friction force is no longer present.
Conclusion:
In summary, the static friction force increases until the body starts to move. It adjusts itself to match and oppose the applied force, up to a certain maximum value. Once the applied force exceeds the maximum static friction, the object starts to move and the static friction force is no longer present.
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Static friction forcea)increases until the body starts to moveb)decrea...
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Static friction forcea)increases until the body starts to moveb)decreases before moving and increases laterc)remains constantd)is a strong interaction forceCorrect answer is option 'A'. Can you explain this answer? for Class 11 2025 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Static friction forcea)increases until the body starts to moveb)decreases before moving and increases laterc)remains constantd)is a strong interaction forceCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 11 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Static friction forcea)increases until the body starts to moveb)decreases before moving and increases laterc)remains constantd)is a strong interaction forceCorrect answer is option 'A'. Can you explain this answer?.
Static friction forcea)increases until the body starts to moveb)decreases before moving and increases laterc)remains constantd)is a strong interaction forceCorrect answer is option 'A'. Can you explain this answer? for Class 11 2025 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Static friction forcea)increases until the body starts to moveb)decreases before moving and increases laterc)remains constantd)is a strong interaction forceCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 11 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Static friction forcea)increases until the body starts to moveb)decreases before moving and increases laterc)remains constantd)is a strong interaction forceCorrect answer is option 'A'. Can you explain this answer?.
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