c 99 m s d 86 m s The second s hand of a watch has length 6 cm Speed of end point and magnitude of difference of velocities at two perpendicular positions will be RPET 1997 b 8 88 and 4 44 mm s d 6 28 and 8 88 mm s a 6 28 and 0 mm s c 8 88 and 6 28 mm s A sphere of mass m is tied to end of a string of length I and rotated through the other end along a horizontal circular path with speed v The work done in full horizontal circle is 67 68 An unbanked curve which a 0 75 a c A wheel then the diameter of a 1 5 m HINT
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