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Illustrate with examples, the concept of...

Illustrate with examples, the concept of centre of mass.

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JBD PUBLICATION-MOTION OF SYSTEM OF PARTICLES AND RIGID BODY-EXAMPLE
  1. Where does centre of mass of a triangular lamina lie?

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  2. Find the torque of a force (7 hati+3 hatJ-5hatk)about the origin .the ...

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  3. Illustrate with examples, the concept of centre of mass.

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  4. Define centre of mass.

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  5. A wrench with large arm is preferred. Why?

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  6. What is geometrical meaning of angular momentum in two dimensions?

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  7. What is law of conservation of momentum ?

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  8. The speed of rotation of a person with some weights in his hands and s...

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  9. What is the ratio of translational K.E. to the total K.E. of a rolling...

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  10. A sphere is rolling without slippin on a horizontal surface and veloci...

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  11. A sphere is rolling without slippin on a horizontal surface and veloci...

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  12. A wheel stays in the upright position while rolling,whereas it falls f...

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  13. Why are two propellers used in a helicopter?

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  14. Consider a two - particle system with the particles having massesM1 a...

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  15. Starting from rest,a fan takes five seconds to attain the maximum sp...

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  16. A block of mass M is places in the top of a biggr block of mass 10 M a...

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  17. A wheel of radius 10 cm can rotate freely about its centre as shown in...

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  18. A wheel rotates with a constant acceleration of 2.0 rad//s^2 .If the w...

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  19. A wheel having moment of inertia 2 kg m^2 about its axis ,rotates at 5...

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  20. A string is wrapped around the rim of a wheel of moment of inertia 0.2...

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