1.

In the above question, if both the links OA and OB turns in clockwise direction, then the rubbing velocity at the pin joint O is

A. ω<sub>1</sub>.ω<sub>2</sub>.r
B. (ω<sub>1</sub>-ω<sub>2</sub>)r
C. (ω<sub>1</sub>+ω<sub>2</sub>)r
D. (ω<sub>1</sub>-ω<sub>2</sub>)2r
Answer» C. (‚âà√¨‚àö¬¢<sub>1</sub>+‚âà√¨‚àö¬¢<sub>2</sub>)r


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