The angular velocity of the pinion is 100 rpm and that of the gear is 30 rpm. The path of recess is equal to 50 mm and the path of contact = 100 mm. Find the velocity of sliding at the beginning of the contact.

A) 1033.29 mm/s B) 902.93 mm/s
C) 394.02 mm/s D) 680.58 mm/s

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