A block of weight 10 N is fastened to one end of a wire of cross sectional area `3 mm^2` and is rotated in a vertical circle of radius 20 cmk. The speed of the block at the bottom of the circle is `2ms^-1`. Find the elongation of the wire when the block is at the bottom of the circle. Young modulus of the material of the wire `=2xx10^11Nm^-2`.

A block of weight 10 N is fastened to one end of wire of cross-sectional area 4 mm^(2) and is rotated ina vertical circle of radius 30 cm. The speed of the block at the bottom of the circle is 3 ms^(-1) . Find the elongation of the wire when the block is at the bottom of the circle . Young's modulus of the material of the wire =2xx10^(11)Nm^(-2).(g=10ms^(-2))

A block of weight 10 N is fastened to one end of wire of cross-sectional area 4 mm^(2) and is rotated ina vertical circle of radius 30 cm. The speed of the block at the bottom of the circle is 3 ms^(-1) . Find the elongation of the wire when the block is at the bottom of the circle . Young's modulus of the material of the wire =2xx10^(11)Nm^(-2).(g=10ms^(-2))

A block of mass 1 kg is fastended to one end of a wire of cross-sectional area 2 mm^(2) and is rotated in a vertical circle of radius 20 cm. The speed of the block at the bottom of the circle is 3.5 ms^(-1) . Find the elongation of the wire when the block is at the top of the circle.

A block of mass 1 Kg is fastened to one each of a wire of cross-sectional area of 2mm^(2) and is rotated in verticle circle of radius 20cm . The speed of the block at the bottom of the circle is 3.5ms^(-1) . The elongation of the wire when the block is at top of the circle

A body of mass 1 kg is fastened to one end of a steel wire of cross- section area 3 xx 10^(-6)m^(2) and is rotated in horizantal circle of radius 20 cm with a constant speed 2 m//s . Find the elongation of the wire (Y= 2 xx 10^(11) N//m^(2))

A block of mass 1 kg is fastended to one end of a copper wire of cross- sectional area 1 mm^(2) and is rotated in a horizontal circle of radius 20 cm. If the breaking stress of copper is 5 xx 10^(8)Nm^(-2) , find the maximum number of revolutions the block make in the minute without the string breaking.

A 14.5 kg mass, fastened to the end of a steel wire of unstretched length 1.0 m, is whirled in a vertical circle with an angular velocity of 2 rev/s at the bottom of the circle. The cross-sectional area of the wire is 0.065 cm^2 . Calculate the elongation of the wire when the mass is at the lowest point of its path.

A 14.5 kg mass, fastened to the end of a steel wire of unstretched length 1.0 m, is whirled in a vertical circle with an angular velocity of 2 rev//s at the bottom of the circle. The cross-sectional area of the wire is 0.065 cm^2 . Calculate the elongation of the wire when the mass is at the lowest point of its path.