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A uniform ring rolls on a horizontal surface with out slipping. Its centre of mass moves with a constant speed v. then speed of the upper most point o

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A uniform ring rolls on a horizontal surface with out slipping. Its centre of mass moves with a constant speed v. then speed of the upper most point on its rim above the ground is
A. v
B. 2v
C. `v//2`
D. `sqrt2 v`
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1 Answer

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by (84.9k points)
Correct Answer - B
`V_(R )=v + v = 2 v`.
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