IN_ORDER_TO_FIND_THE_RADIUS_OF_GYRATION_OF_A_CAR,_IT_IS_SUSPENDED_WITH_ITS_AXIS_VERTICAL_FROM_THREE_PARALLEL_WIRES_2.5_METRES_LONG._THE_WIRES_ARE_ATTACHED_TO_THE_RIM_AT_POINTS_SPACED_120¬¨¬®‚ÄÖ√†√ª_APART_AND_AT_EQUAL_DISTANCES_250_MM_FROM_THE_AXIS._IT_IS_FOUND_THAT_THE_WHEEL_MAKES_50_TORSIONAL_OSCILLATIONS_OF_SMALL_AMPLITUDE_ABOUT_ITS_AXIS_IN_170_SECONDS._FIND_THE_RADIUS_OF_GYRATION_OF_THE_WHEEL.?$#

IN_ORDER_TO_FIND_THE_RADIUS_OF_GYRATION_OF_A_CAR,_IT_IS_SUSPENDED_WITH

1.	IN_ORDER_TO_FIND_THE_RADIUS_OF_GYRATION_OF_A_CAR,_IT_IS_SUSPENDED_WITH_ITS_AXIS_VERTICAL_FROM_THREE_PARALLEL_WIRES_2.5_METRES_LONG._THE_WIRES_ARE_ATTACHED_TO_THE_RIM_AT_POINTS_SPACED_120¬¨¬®‚ÄÖ√†√ª_APART_AND_AT_EQUAL_DISTANCES_250_MM_FROM_THE_AXIS._IT_IS_FOUND_THAT_THE_WHEEL_MAKES_50_TORSIONAL_OSCILLATIONS_OF_SMALL_AMPLITUDE_ABOUT_ITS_AXIS_IN_170_SECONDS._FIND_THE_RADIUS_OF_GYRATION_OF_THE_WHEEL.?$#
A.	168 mm
B.	268 mm
C.	368 mm
D.	468 mm
Answer» C. 368 mm

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A small connecting rod of mass 1.5 kg is suspended in a horizontal plane by two wires 1.25 m long. The wires are attached to the rod at points 120 mm on either side of the centre of gravity. If the rod makes 20 oscillations in 40 seconds, find the mass moment of inertia of the rod about a vertical axis through the centre of gravity.
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IN_ORDER_TO_FIND_THE_RADIUS_OF_GYRATION_OF_A_CAR,_IT_IS_SUSPENDED_WITH_ITS_AXIS_VERTICAL_FROM_THREE_PARALLEL_WIRES_2.5_METRES_LONG._THE_WIRES_ARE_ATTACHED_TO_THE_RIM_AT_POINTS_SPACED_120¬¨¬®‚ÄÖ√†√ª_APART_AND_AT_EQUAL_DISTANCES_250_MM_FROM_THE_AXIS._IT_IS_FOUND_THAT_THE_WHEEL_MAKES_50_TORSIONAL_OSCILLATIONS_OF_SMALL_AMPLITUDE_ABOUT_ITS_AXIS_IN_170_SECONDS._FIND_THE_RADIUS_OF_GYRATION_OF_THE_WHEEL.?$#
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