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A boy is sitting on the horizontal platf...

A boy is sitting on the horizontal platform of a joy wheel at a distance of 5 m from the center. The wheel begins to rotate and when angular speed exceeds 1 rad/s, the boy just slips. The coefficient of friction between the boy and the wheel is `(g=10m//s^(2))`

A

0.5

B

0.32

C

0.71

D

0.2

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AAKASH INSTITUTE ENGLISH-LAWS OF MOTION-Assignment (SECTION-A)
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  5. An object of mass 1 kg moving on a horizontal surface with initial ve...

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  6. A heavy box is slid across a rough floor with an initial speed of 4 m/...

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  7. If a block moving up at theta = 30^(@) with a velocity 5m/s, stops aft...

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  8. A chain is lying on a rough table with a fraction 1/n of its length ha...

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  9. A block has been placed on an inclined plane with the slope angle thet...

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

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  11. In the figure shown, the coefficient of static friction between the bl...

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  12. Two block A and B of masses 5 kg. and 3 kg. respectively rest on smoot...

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  13. A small metallic sphere of mass m is suspended from the ceiling of a c...

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  14. A cystlist riding a bicycle a bicycle at a speed of 14sqrt(3) ...

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

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  16. A car is moving on a horizontal circular track of radius 0.2 km with a...

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  17. A boy is sitting on the horizontal platform of a joy wheel at a distan...

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  18. A vehicle is moving on a track with constant speed as shown in figure....

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  19. A train is running at 20 m/s on a railway line with radius of curvatur...

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  20. A car is moving on a horizontal circular road of radius 0.1 km with co...

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