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While driving around curve of radius 17....

While driving around curve of radius 17.32m, an engineer notes that a pendulam in his car hangs at an angle of `30^@` to the vertical. The speed of the car is (approxiamately)

A

10`m//s`

B

15`m//s`

C

5`m//s`

D

6.7`m//s`

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The correct Answer is:
A
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