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A pendulum clock is mounted in an elevat...

A pendulum clock is mounted in an elevator car which starts going up with a constant acceleration `w`, with `w lt g`. At a height `h` the acceleration of the car reverses, its magnitude remaining constant. How soon after the start of the motion will the clock show the right time again ?

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The correct Answer is:
`sqrt((2h)/(a)) sqrt((1+n)-sqrt(1-n))/(1-sqrt(1-n)),"where" n=a//g`
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NN GHOSH-SIMPLE AND COMPOUND PENDULUM-Exercise
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  4. Two simple pendulams of lengths 1 and 1.1 m rerspectively start swingi...

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  5. A simple pendulam of period 2 s is suspended from the cielieng of a ca...

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  6. A simple pendulam of length l is suspended from the ceiling of a movi...

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  7. Show that the period of a simple pendium is given by T=2pi sqrt((m)/(m...

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  8. Show that the time period of a simplw pendulam of infinite length is g...

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  9. A simple pendulum is secrured in a flat railway car and set oscillatio...

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  10. A pendulum clock is mounted in an elevator car which starts going up w...

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  11. A body of mass 0.42kg oscillates about a horizontal xis distant 0.25mm...

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  16. A disc of metal of raidus r with its plane vetical can be made to swin...

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  18. In a Kater's pendulum the time periods about the knife edges at distan...

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  19. A Kater's pendulum of mass 5kg gives an equal oscillation period of 2....

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