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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.

MBD-LAWS OF MOTION-EXAMPLE
  1. A piece of uniform string hangs vertically so that its free end just t...

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  2. Two particles of equal masses m and m are connected by a light string ...

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

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

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  5. A truck starts from rest and accelerates uniformly at 2.0 m s^-2. At t...

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  6. A truck starts from rest and accelerates uniformly at 2.0 m s^-2. At t...

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  7. Is linear momentum a scalar or a vector quantity?

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  8. Rockets can move in airfree space but jet planes cannot. Why?

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  9. Is earth an inertial frame of reference?

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  10. Why are tyres made circular?

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  11. Is friction independent of actual area orf contact?

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  12. Carts with rubber wheels are easier to ply than those with iron wheels...

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  13. Why is itmore difficult to catch a cricket ball than to catch a tennis...

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  14. What happens to a stone tied to the end of a string and whirled in a c...

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  15. Why is it difficult to walk on ice?

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  16. Two masses 8 kg and 12 kg are connected at the two ends of a light ine...

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  17. How does Newton's first law of motion leads to the definition of force...

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  18. Define momentum of a body. Also give its units.

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  19. Determine aparent weight of a person in a lift when lift is moving u...

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  20. Angle of friciton (theta) and angle of repose (a) are related as

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