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Two identical discs of same radius R are...

Two identical discs of same radius `R` are rotating about their axes in opposite directions with the same constant angular speed `omega` . The discs are in the same horizontal plane. At time `t = 0` , the points `P` and `Q` are facing each other as shown in the figure. The relative speed between the two points `P` and `Q` is `v_(r)`. In one time period `(T) ` of rotation of the discs , `v_(r)` as a function of time is best represented by

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
A

`V_(r)=|2vsintheta|=|2vsinomegat|`
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