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Statement A : If the lift is falling fre...

Statement A : If the lift is falling freely then the man on its floor experiences no reaction from the floor.
Statement B : If the lift moves down with an acceleration `a gt g`, then the normal reaction becomes negative and the man feels floating up in the lift.

A

A and B are correct

B

A and B are false

C

A is true and B is false

D

A is false and B is true

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The correct Answer is:
A
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AAKASH SERIES-LAWS OF MOTION-EXERCISE - I
  1. A man of mass m is on the floor of a lift and lift is moving up with a...

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  2. A person of mass m is on the the floor of a lift. The lift is moving d...

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  3. Statement A : If the lift is falling freely then the man on its floor ...

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  4. Statement A : If the force varies with time in a complicated way then ...

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  5. Statement A : Shock absorbers reduced the magnitude of change in momen...

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  6. Consider the following statements and identify the correct statements ...

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  7. Two blocks A and B of the same mass and surface finish are sliding on ...

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  8. A good lubricant should be highly

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  9. Theoretically which of the following are best lubricants

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  10. A block of mass 'm' is resting on the floor of a lift. The coefficient...

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  11. When a moving body is suddenly stopped a long time after coming to res...

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  12. A block 'B' rests on 'A'. A rests on a horizontal surface 'C' which is...

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  13. Sand is dusted on the railway tracks during rainy season to

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  14. Which of the following are correct for rolling friction

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  15. If an external force and the frictional force acting on a body cancel ...

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  16. Which of the following statemnets is not true ?

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  17. When normal reaction is halved the coefficient of friction is

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  18. Match the items mentioned in the lists I and II below LIST - I ...

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  19. With increase of temperature, the frictional force acting between two ...

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  20. If we imagine two ideally smooth surfaces & if they are kept in contac...

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