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In question 3 of the same exercise, the ...

In question `3` of the same exercise, the radius of the sphere is `a`. The length of the string is also `a`. Find tension in the string.

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The correct Answer is:
B, C
Net force in vertical direction `= 0`

:. `T cos 30^(@) = w` or `T = (2w)/(sqrt3)`
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