The two links OA and OB are connected by a pin joint at O. If the link OA turns with angular velocity ≈ì√¢‚Äö√á√Ö rad/s in the clockwise direction and the link OB turns with angular velocity ≈ì√¢‚Äö√á√á rad/s in the anticlockwise direction, then the rubbing velocity at the pin joint O is (where r = Radius of the pin at O)$

(≈ì√¢‚Äö√á√Ö - ≈ì√¢‚Äö√á√á) 2r

≈ì√¢‚Äö√á√Ö.≈ì√¢‚Äö√á√á.r

(≈ì√¢‚Äö√á√Ö - ≈ì√¢‚Äö√á√á) r

(≈ì√¢‚Äö√á√Ö + ≈ì√¢‚Äö√á√á) r

The two links OA and OB are connected by a pin joint at O. If the link

1.	The two links OA and OB are connected by a pin joint at O. If the link OA turns with angular velocity ≈ì√¢‚Äö√á√Ö rad/s in the clockwise direction and the link OB turns with angular velocity ≈ì√¢‚Äö√á√á rad/s in the anticlockwise direction, then the rubbing velocity at the pin joint O is (where r = Radius of the pin at O)$
A.	≈ì√¢‚Äö√á√Ö.≈ì√¢‚Äö√á√á.r
B.	(≈ì√¢‚Äö√á√Ö - ≈ì√¢‚Äö√á√á) r
C.	(≈ì√¢‚Äö√á√Ö + ≈ì√¢‚Äö√á√á) r
D.	(≈ì√¢‚Äö√á√Ö - ≈ì√¢‚Äö√á√á) 2r
Answer» D. (≈ì√¢‚Äö√á√Ö - ≈ì√¢‚Äö√á√á) 2r

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