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A shell following a parabolic path explo...

A shell following a parabolic path explodes somewhere in its flight.The centre of mass of fragmetns will continue to move in:

A

vertical direction

B

any direction

C

horizonatal direction

D

same parabolic path.

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

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  6. Is the angular momentum a scalar quantity ?State its unit.

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  7. What is the direction of angular momentum of a body?

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  8. Is centre of mass a reality?

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  9. Which points on a cylinder rolling over a surface move rectilinearly ?

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  10. A shell fired from a gun explodes into pieces in air .How is the centr...

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  11. A ballet-dancer stretches her hands out for slowing down.What principl...

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  12. Under what conditions angular momentum of a moving body is zero?

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  13. Three identical spheres each of radius R are placed touching each ooth...

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  14. Center of mass of a body always lies at a point, where there is no mas...

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  15. Does the angular momentum of an eletron remain consered when the elect...

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  16. What is an isolated system?

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  17. Define centre of mass.

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  18. What is rotational analogue of mass?

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  19. Is radius of gyration of a body a constant quantity?

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  20. About which axis is moment of inertia of cube minimum?

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  21. Find the expression for moment of inertia of a thin uniform rod abou...

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