An object start moving in a circular path of radius R, from point A. The magnitude of displacement of the object, when it reaches point B is
(a)
(b)
(c)
(d)
I INSIST (not think) AND AM SURE THAT THE CORRECT ANSWER IS "B"THE COMPUTER SHOWS THAT THE ANSWER IS"D"ANYBODY WHO CAN PROVE IT"D", PLEASE DO SO AND THOSE WHO SUPPORT ME , PLEASE POST YOUR SUPPORT