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A ring of radius R rolls on a horizontal...


A ring of radius `R` rolls on a horizontal ground with linear speed `v` and angular speed `omega`. For what value of `theta` the velocity of point `P` is in vertical direction `(vltRomega)`.

A

(a)`pi+sin^(-1) (v)/(R omega)`

B

(b)`pi/(2)-sin^(-1) (v)/(R omega)`

C

(c)`pi- cos^(-1) (v)/(R omega)`

D

(d)`pi- cos^(-1) (v)/(R omega)`

Text Solution

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The correct Answer is:
C, D
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