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Spring Block's Time Period

A YO-YO us ...

Question

A $Y O - Y O$ us a toy in which a string is wound round a central shaft as shown in figure. The string unwinds and rewinds itself alternately making the $Y O - Y O$ rises and fall. The ratio of the tensions in the string during descent and ascent is:

A

1 : 1

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B

r_{2} : r_{1}

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C

r_{1} : r_{2}

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D

r_{1} : 1

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Solution

The correct option is A $1 : 1$

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