A 14.5 kg mass, fastened to the end of a steel wire of unstretched length 1m, 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 elongaton of the wire when the mass is at the lowest point of its path `Y_(steel) = 2 xx 10^(11) Nm^(-2)`.

A 6 kg weight is fastened to the end of a steel wire of unstretched length 60 cm . It is whirled in a vertical circle and has an angular velocity of 2 rev//s at the bottom of the circle. The area of cross - section of the wire is 0.05 cm ^(2) . Calculate the elongation of the wire when the weight is at the lowest point of the path . Young's modulus of steel = 2xx10 ^(11) N //m^(2) .

A steel wire of length 3.0m is stretched through 3.0 mm. the cross-sectional area of the wire is 5.0mm^(2) . Calculate the elastic potential energy stroed in the wire in the stretched condition. Young's modulus of steel is 2.0 xx 10^(11) Nm^(-2) .

A steel wire of length 2.0 m/s is stretched through 2.0 mm. The cross sectional area of the wire is 4.0 mm^2. Calculate the elastic potential energy stored in the wire in the stretched condition. Young modulus of steel =2.0x10^11Nm^-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 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 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 sphere of radius 10 cm and mass 25 kg is attached to the lower end of a steel wire of length 5 m and diameter 4 mm which is suspended from the ceiling of a room . The point of support is 521 cm above the floor. When the sphere is set swinging as a simple pendulum, its lowest point just grazes the floor. Calculate the velocity of the ball at its lowest position (Y_(steel) = 2xx10^(11) N//m^(2)) .

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))