Question Answers

Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A 100 kg mass, fastened to the end of a steel wire of unstretched length 1 m, is whirled in a vertical circle with an angular velocity of 5 m/s at the bottom of the circle. The cross-sectional area of the wire is 0.070 cm^2 . Calculate the elongaton of teh wire when the mass is at the lowest point of its path ( Ysteel = 200 GPa ).

A 100 kg mass, fastened to the end of a steel wire of unstretched length 1 m, is whirled in a vertical circle with an angular velocity of 5 m/s at the bottom of the circle. The cross-sectional area of the wire is 0.070 cm^2 . Calculate the elongaton of teh wire when the mass is at the lowest point of its path ( Ysteel = 200 GPa ).

A 100 kg mass fastened to the end of a steel wire of unstretched length 1 m The diameter of a brass rod is 4 mm having young's moudles 9 x 10^9 N/m^2. Find the force required to stretched the rod by 0.1% of its length.