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A board of mass m = 1 kg lies on a table...

A board of mass m = 1 kg lies on a table and a weight of M = 2 kg on the board. What minimum force F must be applied on the board in order to pull it out from under the road ? The coefficient of friction between board and table is `mu_(2) = 0.5` : (Take `g = 10 m//s^(2)`)

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NN GHOSH-FRICTION, WORK POWER AND ENERGY-Exercises (B)
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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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