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A block is pushed up a rough inclined pl...

A block is pushed up a rough inclined plane of 45°. If the time of descent is twice the time of ascent, the coefficient of friction is

A

`0.6`

B

`0.4`

C

`0.5`

D

`0.25`

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A
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AAKASH SERIES-LAWS OF MOTION-EXERCISE - II
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  2. A block sliding down a rough 45° inclined plane has half the velocity ...

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  3. A block is pushed up a rough inclined plane of 45°. If the time of des...

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  4. A rod AB of length 2L and mass m is lying on a horizontal frictionless...

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  5. A body is allowed to slide from the top along a smooth inclined plane ...

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  6. A particle is projected at an angle theta =30^@ with the horizontal, w...

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  7. A 30 kg block is to be moved up an inclined plane at an anglue 30° to ...

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  8. An engine of one metric ton is going up an inclined plane, 1 in 2 at t...

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  9. The minimum force required to move a body up an inclined plane is thre...

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  10. A body of mass 10kg is on a rough inclined plane having an inclination...

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  11. A block of wood of mass 0.5 kg is placed on a plane making 30° with th...

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  12. A body of mass 'm' slides down a smooth inclined plane having an incli...

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  13. A body is sliding down an inclined plane have coefficient of friction ...

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  14. A particle is placed at rest inside a hollow hemisphere of radius R. T...

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  15. A wooden box lying at rest on an inclined surface of a wet wood is hel...

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  16. Consider a frictionless ramp on which a smooth object is made to slide...

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  17. A body of mass 2 kg slides down with an acceleration of 3 m//s^(2) on ...

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  18. The centripetal force required by a 1000 kg car that takes a turn of r...

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  19. A stone of mass 0.5 kg is attached to a string of length 2 m and is wh...

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  20. A car is moving in a circular horizontal track of radius 10 m with a c...

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