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How should the force applied on a body be varied with velocity to keep the power of force constant?
  • a)
    Force should be inversely proportional to the square root of the velocity of the body
  • b)
    Force should be inversely proportional to the velocity of the body
  • c)
    Force should be directly proportional to the velocity of the body
  • d)
    Force should not be varied. It should remain constant with the velocity
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
How should the force applied on a body be varied with velocity to keep...
We know that power (P) = force (F) x velocity (v).
Since the body is moving with acceleration,v changes and as a result of that P also changes,F being constant.
For P to be constant, F v = constant or F ∝ 1/v i.e 
Force should be inversely proportional to the velocity of the body.

Thus,as v increases, F should decrease to keep P constant. 

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Most Upvoted Answer
How should the force applied on a body be varied with velocity to keep...
P= w/t.we know (w=F.S).p=FS/t.we know (s/t= v).p=F V.F=p/v.when power is constant .then force is inversely proportional to v.
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Community Answer
How should the force applied on a body be varied with velocity to keep...
See.. We know that Power is the dot product of Force and Velocity Vector and hence To keep Power Constant..If Velocity Increases, Force must be decreased and vice versa..Hence the Force Should be Inversely porportional to Velocity to keep Power Constant
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How should the force applied on a body be varied with velocity to keep the power of force constant?a)Force should be inversely proportional to the square root of the velocity of the bodyb)Force should be inversely proportional to the velocity of the bodyc)Force should be directly proportional to the velocity of the bodyd)Force should not be varied. It should remain constant with the velocityCorrect answer is option 'B'. Can you explain this answer?
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How should the force applied on a body be varied with velocity to keep the power of force constant?a)Force should be inversely proportional to the square root of the velocity of the bodyb)Force should be inversely proportional to the velocity of the bodyc)Force should be directly proportional to the velocity of the bodyd)Force should not be varied. It should remain constant with the velocityCorrect answer is option 'B'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about How should the force applied on a body be varied with velocity to keep the power of force constant?a)Force should be inversely proportional to the square root of the velocity of the bodyb)Force should be inversely proportional to the velocity of the bodyc)Force should be directly proportional to the velocity of the bodyd)Force should not be varied. It should remain constant with the velocityCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for How should the force applied on a body be varied with velocity to keep the power of force constant?a)Force should be inversely proportional to the square root of the velocity of the bodyb)Force should be inversely proportional to the velocity of the bodyc)Force should be directly proportional to the velocity of the bodyd)Force should not be varied. It should remain constant with the velocityCorrect answer is option 'B'. Can you explain this answer?.
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