IIT Jee Problem: A load of mass M kg is suspended by a steel wire of length 2m and radius 1.0mm

A load of mass M kg is suspended from a steel wire of length 2 m and radius 1.0 mm in Searle's apparatus experiment. The increase in length produced in the wire is 4.0 mm , Now the loads is fully immersed in a liquid of relative density 2. The relative density of the material of load is 8. The new value of increase in length of the steel wire is :

A load of 4.0 kg is suspended from a ceiling through a steel wire of length 20 m and radius 2.0 mm. It is found that the length of the wire increases by 0.031 mm as equilibrium is achieved. Find Young modulus of steel. Take g=3.1pims^-2

A sphere of mass 3 kg is attached to one end of a steel wire of length 1 m and radius 1mm. It is whirled in a vertical circle with an angular velocity of 2 rev // s. What is the elongation of the wire, when the weight is at the lowest point of its path? Y for steel = 20 xx 10^(10) N //m^(2) .

A load of 4 kg is suspended from a ceiling through a steel wire of length 2 m and radius 2 mm. It is found that the length of the wire increase by 0.032 mm as equilibrium is achieved. What would be the Young's modulus of steel ? (Take , g=3.1 pi m s^(-2) )

A load of 4 kg is suspended from a ceiling through a steel wire of length 20 m and radius 2 mm . It is found that the length of the wire increases by 0.031 mm , as equilibrium is achieved. If g = 3.1xxpi ms(-2) , the value of young's modulus of the material of the wire (in Nm^(-2)) is

When a block of mass M is suspended by a long wire of length L, the length of the wire becomes (L+l). The elastic potential energy stored in the extended wire is

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)) .

When a weight of 5 kg is suspended from a copper wire of length 30 m and diameter 0.5 mm , the length of the wire increases by 2.4 cm . If the diameter is doubled, the extension produced is

A block of mass 4 kg is suspended from the ceiling with the help of a steel wire of radius 2mm and negligible mass. Find the stress in the wire. (g=pi^(2)) (A) 4.0xx10^(6) N//m^(2) (B) 3.14xx10^(6) N//m^(2) (C) 3xx10^(5) N//m^(2) (D) 2.0xx10^(6) N//m^(2)

A trolley of mass 5 kg on a horizontal smooth surface is pulled by a load of mass 2 kg by means of uniform rope ABC of length 2 m and mass 1kg. As the load falls from BC=0 to BC=2m. Its accerleration in m//s^(2) change-