A point p consider at contact point of a wheel on ground which rolls on ground without sliping then value of displacement of point p when wheel completes half of rotation (if radius of wheel is 1m) : -
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Since, the point P is the point which is directly in contact to the ground , we know that if the wheel is not slipping, that is, it is doing pure rolling then the Velocity of that particle will be zero.Since the velocity of centre of mass will be equal to the velocity of the revolution wR of the wheel and hence even the displacement of this point will be actually zero after any number of rotations.
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Answer: √(π^2+4m)
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