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A wheel of radius R rolls forward half a revolution . The displacement of a point which is at height R from the point which is initially in contact to the ground is (1) R \sqrt{π^2+4 } (2) π R (3) π R+2R (4) 2R |
| Answer» A wheel of radius R rolls forward half a revolution . The displacement of a point which is at height R from the point which is initially in contact to the ground is (1) R \sqrt{π^2+4 } (2) π R (3) π R+2R (4) 2R | |