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                                    What is the displacement of the point of a wheel initially in contact with the ground when the wheel rolls forward half a revolution ? Take radius of the wheel as R and the x-axis as theforward direction. | 
                            
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Answer»  The displacement of the point of a wheel initially in contact with the GROUND when the wheel ROLLS forward half a revolution where radius of the wheel is 1M, is (Assume the forward direction as x-axis).  | 
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