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What happens to a stone tied to the end of a string and whirled in a circle if the string suddenly breaks?

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A stone tied to the end of a string 80 cnr long is whirled in a horizontal circle with a constant speed. If the stone makes 14 revolutions in 25 s, what is the magnitude and direction of acceleration of the stone ?

A stone of mass 0.25 kg tied to the end of a string is whirled round in a circle of radius 1.5 m with a speed of 40 rev.//min in a horizontal plane. What is the tension in the string ? What is the maximum speed with which the stone can be whirled around if the string can withstand a maximum tension of 200 N ?

A stone of mass mtied to the end of a string revolves in a vertical circle of radius R. The net forces at the lowest and highest points of the circle directed vertically downwards are : [Choose the correct alternative] T_1 and v_1 denote the tension and speed at the lowest point. T_2 and v_2 denote corresponding values at the highest point.

A stone tied to one end of string is moved in a circle. How much work is done by the centripetal force in this circular motion ?

A mass of 1 is tied to a string as shown in the figure. Find. the force exerted by the string on the mass.

Two bodies of masses 10kg and 20 kg respecively kept on a smooth, horizontal surface are tied to the ends of a lght string. A horizontal force F= 600 N is applied to (i) A (ii) B along the direction of string. What is the tension in the string in each case?

A 14.5 kg mass, fastened to the end of a steel wire of unstretched length 1.0 m, is whirled in a vertical circle with an angular velocity of 2 rev//s at the bottom of the circle. The cross-sectional area of the wire is 0.065 cm^2 . Calculate the elongation of the wire when the mass is at the lowest point of its path.

MODERN PUBLICATION-Dynamics of Circular Motion-Exercise
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  8. A car is taking a sudden turn to the left. A passenger in the front se...

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  9. The outer rail of a curved railway track is generally raised over the ...

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  10. Why does a cyclist lean to one side while going along a curve? In whic...

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  11. Why does a cyclist lean to one side while going along a curve? In whic...

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  12. A bucket containing water is rotated in a vertical circle. Explain why...

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  13. Explain, why the pilot of the aeroplane does not fall down, while loop...

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  14. Write an expression for the centripetal force.

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  15. Explain centipetal force and centrifugal force. Why centrifugal force ...

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  16. Define centrifugal force.

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  17. Explain the need for banking of tracks.

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  18. Calculate the maximum speed with which a vehicle can travel on a level...

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  19. Derive an expression for the angle of bending of a cyclist on a curved...

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