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Assertion : The value of dynamic frictio...

Assertion : The value of dynamic friction is less than the limiting friction.
Reason : Once the motion has started, the inertia of rest has been overcome.

A

If both assertion and reason are true and t he reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false

D

If the assertion and reason both are false

Text Solution

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The correct Answer is:
A
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ERRORLESS -FRICTION-MCQ S
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  2. Assertion : Angle of repose is equal to angle of limiting friction. ...

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  4. Assertion: Friction is a self-adjusting force. Reason: Friction does...

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  5. Assertion : The value of dynamic friction is less than the limiting fr...

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  6. Assertion: The acceleration of a body down a rough inclined plane is g...

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  7. A force of 19.6 N when applied parallel to the surface just moves a bo...

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  8. If the normal force is doubled, the coefficient of friction is

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  9. A body of weight 50 N placed on a horizontal surface is just moved by ...

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  10. Block A weighing 100 kg rests on a block B and is tied with a horizont...

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  11. A rough vertical board has an acceleration a so that a 2 kg block pres...

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  12. A stone weighing 1 kg and sliding on ice with a velocity of 2 m / s is...

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  13. A body of mass 10 kg slides a long a rough horizontal surfce. The coef...

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  14. A lift is moving down with an acceleration equal to the acceleration d...

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  15. In the above question, if the lift is moving upwards with a uniform ve...

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  16. A body of mass 2 kg is moving on the ground comes to rest after some t...

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  17. A cyclist moves in a circular track of radius 100 m . If the coefficie...

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  18. A block of mass 5kg lies on a rough horizontal table. A force of 19.6 ...

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  19. A motor car has a width 1.1m between wheels. Its centre of gravity is ...

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