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The cap of the pen can be easily opened ...

The cap of the pen can be easily opened with the help of tw fingers than with one finger. Explain why.

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JBD PUBLICATION-MOTION OF SYSTEM OF PARTICLES AND RIGID BODY-EXAMPLE
  1. A shell fired from a gun explodes into pieces in air .How is the centr...

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  2. A system consists of two particles of masses M and m(M>m) separated by...

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  3. The cap of the pen can be easily opened with the help of tw fingers th...

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  4. Derive expression for torque in cartesian co-ordinate system.

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  5. A spinninng top stands erect but a top which is not spinning falls.Why...

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  6. A disc spinning about its axis is placed lightly without an translatio...

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  7. A disc spinning clockwise about its axis with angular velocity omega0 ...

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  8. A disc spinning clockwise about its axis with angular velocity omega0 ...

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  9. A ring and disc have the same mass and radius.What is the ratio of the...

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  10. A constant torque acting on a uniform circular wheel changes its angul...

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  11. What is the total kinetic eneryg of a solid sphere rolling on a surfac...

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  12. Derive an expression for aceleration of a bdy moving down an inclined ...

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  13. Moment of a solid cylinder about its axis of symmetry is equal to mome...

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  14. The moment of inertia of two bodies are Ia and Ib with Ia>Ib and thei...

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  15. Derive Kepler's second law of planetary motion,using the law of conse...

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  16. Find the moment of inertia of a sphere about a tangent to the sphere, ...

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  17. If the earth suddenly contrats to half of its original size without an...

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  18. A cylidrical drum is pushed by a wooden plank as shown in the fig.The ...

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  19. Explain how a cat is able to land gently on its feet after a fall taki...

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  20. Read each statement below carefully, and state, with reasons, if it is...

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