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For what angle between Force and Displacement will the work done be positive?
- a)
- b)
- c)
- d)
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
For what angle between Force and Displacement will the work done be po...
- If a force acting on a body has a component in the opposite direction of displacement, the work done is negative.
- So when a body slides against a rough horizontal surface, its displacement is opposite to that of the force of friction. The work done by the friction is negative.
Most Upvoted Answer
For what angle between Force and Displacement will the work done be po...
Frictional Force and Work
Frictional force is a force that opposes the motion of an object when it is in contact with a surface. This force is dependent on the nature of the surfaces in contact and the force pushing the objects together. When a body slides on a rough horizontal surface, frictional force acts in the opposite direction to the motion of the body. This force does work on the body.
Work done by Friction
When a body slides on a rough horizontal surface, the work done by friction is negative. This is because the force of friction opposes the motion of the body, and hence its direction is opposite to that of the displacement of the body. The work done by a force is the product of the force and the displacement of the body in the direction of the force. Since the force of friction is opposite to the displacement of the body, the work done by it is negative.
Formula for Work Done by Friction
The formula for work done by friction is given by:
W = -f*d
Where W is the work done by friction, f is the force of friction, and d is the displacement of the body in the direction of the force of friction.
Conclusion
In summary, when a body slides on a rough horizontal surface, the work done by friction is negative. This is because the force of friction opposes the motion of the body, and hence its direction is opposite to that of the displacement of the body.
Frictional force is a force that opposes the motion of an object when it is in contact with a surface. This force is dependent on the nature of the surfaces in contact and the force pushing the objects together. When a body slides on a rough horizontal surface, frictional force acts in the opposite direction to the motion of the body. This force does work on the body.
Work done by Friction
When a body slides on a rough horizontal surface, the work done by friction is negative. This is because the force of friction opposes the motion of the body, and hence its direction is opposite to that of the displacement of the body. The work done by a force is the product of the force and the displacement of the body in the direction of the force. Since the force of friction is opposite to the displacement of the body, the work done by it is negative.
Formula for Work Done by Friction
The formula for work done by friction is given by:
W = -f*d
Where W is the work done by friction, f is the force of friction, and d is the displacement of the body in the direction of the force of friction.
Conclusion
In summary, when a body slides on a rough horizontal surface, the work done by friction is negative. This is because the force of friction opposes the motion of the body, and hence its direction is opposite to that of the displacement of the body.
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Community Answer
For what angle between Force and Displacement will the work done be po...
If a force acting on a body has a component in the opposite direction of displacement, the work done is negative, when a body slides against a rough horizontal surface, its displacement is opposite to that of the force of friction. He work done by the friction is negative.
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For what angle between Force and Displacement will the work done be positive?a)b)c)d)Correct answer is option 'C'. 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 For what angle between Force and Displacement will the work done be positive?a)b)c)d)Correct answer is option 'C'. 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 For what angle between Force and Displacement will the work done be positive?a)b)c)d)Correct answer is option 'C'. Can you explain this answer?.
For what angle between Force and Displacement will the work done be positive?a)b)c)d)Correct answer is option 'C'. 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 For what angle between Force and Displacement will the work done be positive?a)b)c)d)Correct answer is option 'C'. 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 For what angle between Force and Displacement will the work done be positive?a)b)c)d)Correct answer is option 'C'. Can you explain this answer?.
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