1.

A wheel of radius R rolls without slipping with a speed v on a horizontal road. When it is at a pointA on the road, a small mud particle separates from the wheel at its highest point and lands atpoint B on the road. Then(A)AB V(B) AB 2V9(C) AB 4v(D) none of these9

Answer»

The velocity of a point at the highest point of a wheel moving with a constant speed "v" on a horizontal road is 2v. This will be the velocity of the small blob of mud separating from the wheel at its highest point A. It would travel to B before falling.

Therefore the length of the point AB= 2vt.



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