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Starting from rest , a body slides down ...

Starting from rest , a body slides down at `45^(@)` inclined plane in twice the time it takes to slide down the same distance in the absence of friction. The coefficient of friction between the body and the inclined plane is

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Starting from rest a body slides down a 45^(@) inclined plane in twice the time it takes to slide down the same distance in the absence of friction. The coefficient of the body and the inclined plane is :

A piece of ics slides down a 45^(@) incline in twice the time it takes to slide down a frictionless 45^(@) incline . What is the coefficient of friction between the ice and the incline ? .

(a) A block slides down an incline of angle 45^(@) with an acceleration (g)/(2 sqrt(2)) . Find the friction coefficient. (b) A block slides down at 45^(@) inclined plane in twice the time it takes to slide down a smooth 45^(@) incline. What is friction co-efficient between the block and the incline? ( c) A block slides down on a rough inclined plane of inclination 30^(@) with constant velocity. If this block is projected up the plane with a velocity of 10 m//s , then at what distance along the inclined plane , the block will come to rest? (d) A body is launched up on a rough inclined plane of inclination theta . If time of ascent is half of time of descent, find the friction coefficient.

A block sliding down on a rough 45^(@) inclined planes has half the velocity it would have been, the inclined plane is smooth. The coefficient of sliding friction between the the block and the inclined plane is

The time taken by a body to slide down a rough 45^(@) inclined plane is twice that required to slide down a smooth 45^(@) inclined plane. The coefficient of kinetic friction between the object and rough plane is given by

A given object takes n times as much time to slido down a 45^(@) rough inclined plane as it takes to slide down a perfectly smooth 45^(@) inclined plane. The coefficient of kinetic friction between the object and the inclined plane is given by:

It takes a block twice as long to slide down a plane incline at 45^(@) to the horizontal as it would take for it to slide down the same plane had the plane been frictionless. Colculate the coefficient of friction between block and inclined plane.

The minimum force required to move a body up on an inclined plane is three times the minimum force required to prevent it from sliding down the plane. If the coefficient of friction between the body and the inclined plane is 1/(2sqrt3) the angle of the inclined plane is

A body takes just twice the time as long to slide down a plane inclined at 30^(@) to the horizontal as if the plane were frictionless. The coefficient of friction between the body and the plane is

NN GHOSH-FRICTION, WORK POWER AND ENERGY-Exercises (B)
  1. Starting from rest , a body slides down at 45^(@) inclined plane in tw...

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  2. A block of mass 2kg is placed on a trolley of mass 20 kg free to move ...

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  3. A block of mass m height 2h and width 2b rests on a flat car which mo...

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  4. Assuming that a car whose CG is at a height b from the rear wheel and ...

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  5. A flexible but inextensible chain of length l is placed on a smooth ta...

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  6. Calculate of velocity v of the falling masss P after it has gone down ...

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  7. If the system if Figure 7.13 is released from rest in the configuratio...

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  8. A body of mass m starts from rest down a plane of length l at an angle...

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  9. A block A of mass 4 kg is placed on another block B of mass 5 kg , and...

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  10. A block A of 10 kg rests on a rouch, horizontal table and is connected...

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  11. A block of mass m slides down an inclined right angled trough .If the ...

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  12. A force of 5 N acts on a 15 kg body initially at rest. The work done b...

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  13. The force required to tow boat at a constant velocity is proportional ...

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  14. What power is developed by a grinding machine whose wheel has a radius...

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  15. Consider the system of weights P(1)=1 kg,P(2) = 2 kg,P(3) = 5kg and P(...

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  16. A plane surface, incline at 37^(@) to the horizontal is accelerated ho...

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  17. A weight of mass m=1 kg attached to a spring of force constant k = 20 ...

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  18. M(A) = 3 kg ,M(B) = 4 kg ,M(C) = 8 kg. Coefficient of friction between...

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  19. The total mass of an elevator with a 80 kg man in it is 1000 kg. This ...

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  20. Two masses 1.65 kg and 3.30 kg are joined together by a massles rod pa...

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  21. A body of mass m was slowly hauled up the hill as shown in the fig. by...

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