A ring -rolls without slipping on the ground. Its centreC moves with a constant speed u. P is any point on the ring. The speed of P with respect to the ground is v.
Text Solution
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CHECK THE SOLUTION.
(a, c, d)
Energy point on the ring has a horizontal velocity u due to its linear motion, and in addition a velocity u, tangential to the ring, due to its rotational motion. The resultant of these two is the velocity of the point with respect to the ground.
Hence, v A = 0, v B = 2u, v D = 
u, v E = u.
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