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Question

Find the linear speed of sphere when it starts pure rolling.

162698_940222376c2942249afa2f9799757d6b.png

A
v=v07
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B
v=2v07
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C
v=3v07
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D
v=4v07
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Solution

The correct option is D v=4v07
Linear speed at time t=3v07μg is
v=v0μg3v07μg=4v07

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