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A smooth ring A of mass m can slide on a...

A smooth ring A of mass m can slide on a fixed horizontal rod. A string tied to the ring passes over a fixed pulley B and carries a block C of mass `M(=2m)` as shown in figure. At an instant the string between the ring and the pulley makes an angle `theta` with the rod. (a). Show that, if the ring slides with a speed v, the block descends with speed `v cos theta`, (b). With what acceleration will the ring starts moving if the system is released from rest with `theta= 30^0`

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Verified by Experts

The correct Answer is:
`[v sec theta]`
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PHYSICS GALAXY - ASHISH ARORA-KINEMATICS-Practice Exercise
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  6. Find the speed of the box-3, if box-1 and box-2 are moving with speeds...

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  7. A smooth ring A of mass m can slide on a fixed horizontal rod. A strin...

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  8. Figure shows a pulley over which is string passes and connected to two...

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  9. Find the relation in the accelerations of the three masses shown in fi...

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  11. Find the Relation among velocities of the blocks shown in figure (a), ...

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  12. Block B shown in figure , moves downwards with a constant velocity of ...

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  13. Block C shown in figure, starts from rest and moves downward with a co...

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  14. The system shown in figure starts from rest, and each block moves with...

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  15. Find the relation among the acceleration of blocks A and B constrained...

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  16. If the wedge A shown in figure-1.93, is moving toward left with accele...

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  17. Find the speed of the block B when the wedges A and C are moving towar...

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  18. Find the acceleration of the block B as shown in figure- 1.95 (a) and ...

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  19. If the point P on string shown in figure-1.96 is pulled down with a ve...

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  20. Find the constrained relation among the acceleration of blocks A, B an...

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