A wire of length `1m` fixed at one end has a sphere attached to it at the other end. The sphere is projected hroizonatally with a veloicity of `sqrt(9g)`. When it decribes a vertical circle the ratio of elongations of the wire when the sphere is at top and bottom of the circle is

A body of mass 4 kg is rotating in a vertical circle at the end of a string of length 0.6 m. Calculate the difference of K.E. at the top and the bottom of the circle

A half kg weight is tied to one end of a metal wire of length 0.6 m . By holding the other end in the hand, the wire is whirled in a vertical and has an angular velocity of 2 r.p.s. at bottom of the circle. What is the elongation of the wire at the lowest point ? Area of cross-section of the wire = 5 x 10 ^(-6) m^2 . Y for steel = 2 x 10^10 N/m^2 .

A wire of length L is fixed at one end. It is elongates by I when a load W is hanged from other end. If the wire goes over a pulley and two weights W each are hung at the two ends, the elongation of the wire will be ......

A string of length 1 m is fixed at one end to a rigid support and carries a sphere of 100 g at the other end. The string makes (2)/(pi) revolutions per second around a vertical axis through the fixed end. Calculate the linear velocity of the sphere.

A string of length 1 m is fixed at one end to a rigid support and carries a sphere of 100 g at the other end. The string makes (2)/(pi) revolutions per second around a vertical axis through the fixed end. Calculate The angle of inclination of the string with the vertical axis.

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 sphere of mass m attached with the free end of a steel wire of length l swings in the veritical plane form the horizontal positon. Elongation of the wire in the vericle positon is