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Which one of the following is not used t...

Which one of the following is not used to reduce friction

A

Oil

B

Ball bearings

C

Sand

D

Graphite

Text Solution

Verified by Experts

The correct Answer is:
C
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ERRORLESS -FRICTION-MCQ S
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  2. A block of mass 2kg is kept on the floor. The coefficient of static fr...

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  3. Which one of the following is not used to reduce friction

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  4. If a ladder weighting 250 N is placed against a smooth vertical wall h...

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  5. A body of mass 2 kg is kept by pressing to a vertical wall by a force ...

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  6. A horizontal force of 10N is necessary to just hold a block stationary...

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  7. The coefficient of static friction, mu(s) between block A of mass 2 k...

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  8. If mass of A=10 kg, coefficent of static friction =0.2 coefficient of ...

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  9. A uniform metal chain is placed on a rough table such that the one end...

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

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  11. If a ladder weighting 250 N is placed against a smooth vertical wall h...

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  12. Which one of the following statements is correct

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  13. The maximum speed that can be achieved without skidding by a car on a ...

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  14. A car is moving along a straight horizontal road with a speed v(0) . I...

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  15. A block of mass 5kg is on a rough horizontal surface and is at rest. N...

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  16. A body of mass 2 kg is being dragged with uniform velocity of 2 m / s ...

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  17. Two carts of masses 200 kg and 300 kg on horizontal rails are pushed a...

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  18. A body B lies on a smooth horizontal table and another body A is place...

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  19. A 60 kg body is pushed with just enough force to start it moving acros...

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  20. A car turns a corner on a slippery road at a constant speed of 10 m//...

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