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Explain the method to find the centre of...

Explain the method to find the centre of gravity of irregularly shaped lamina.

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If a lamina is suspended from different points like P.Q. R as shown in the figure , the vertical lines PP'. QQ'. RR' all passs thorugh the centre of gravity. Here reaction force acting at the pooint of suspension and the gravitational force. The lamina is in stable equilibrium. So it remains horizontal. Acting at the centre of gravity cancel each other. So the torques caused by them also cancel each other.
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PREMIERS PUBLISHERS-MOTION OF SYSTEM OF PARTICLES AND BODIES-TEXTBOOK QUESTIONS & ANSWERS (LONG ANSWER QUESTIONS)
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  2. Explain the method to find the centre of gravity of irregularly shaped...

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  5. Derive the expression for moment of inertia of a uniform ring about a...

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  6. Derive the expression for moment of inerita of a uniform disc about an...

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  7. State conservation of angular momentum.

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  8. State and prove parallel axis theorem

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  9. State and prove perpendicular axis theorem.

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  10. Discuss the effect of rolling on inclined plane and derive the express...

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  11. Explain the types of equilibrium with suitable examples

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  12. Explain the method to find the centre of gravity of irregularly shaped...

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  13. Explain why a cyclist bends while negotiating a curve road?

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  14. Derive the expresssion for moment of inertia of a rod about its centre...

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  15. Derive the expression for moment of inertia of a uniform ring about a...

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  16. Derive the expression for moment of inerita of a uniform disc about an...

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  17. State conservation of angular momentum.

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  18. State and prove parallel axis theorem

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  19. State and prove perpendicular axis theorem.

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  20. Discuss the effect of rolling on inclined plane and derive the express...

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