When load of 5 kg is hung on a wire than extension of 3 m takes place, then work done will be

When a load of 5kg is hung on a wire then extension of 30 cm take place then work done will be :-

When a load of 5kg is hung on a wire then extension of 30 cm take place then work done will be :-

When a load of 5kg is hung on a wire then extension of 30 cm take place then work done will be :-

When a load of 10 kg is hung from the wire, then extension of 2m is produced. Then work done by restoring force is

When a load of 10 kg is hung from the wire, then extension of 2m is produced. Then work done by restoring force is

When a load of 10 kg is hung from one end of a wire of length 5 m, the wire elongates by 5 mm. IF the young modulus for the material of the wire is 9.8 times 10^10 N.m^-2 , then find the area of cross section of the wire. [g=9.8 m.s^-2 ]