A bobbin rolls without slipping over a horizontal surface so that the velocity v of the end
Channel: Doubtnut
Date: 2020-08-30

A bobbin rolls without slipping over a horizontal surface so that the velocity v of the end of the thread (point A) is directed along the horizontal . A board hinged at point B leans against the bobbin (Fig.) The inner and outer radii of the bobbin are r and R respectively. Determine the angular velocity `omega` of teh board as a function of an angle `alpha`. img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/SSK_ATP_PHY_C01_E01_016_Q01.png" width="80%"