Question

A long uniform rope of mass m is suspended from a rigid end calculate longitudinal strain

Answer 1

Tension in the rope magnitude of the pulling force exerted. We have to assume that the mass of the rope is uniformly distributed. Therefore, tension will be the vector sum of forces acting upon it. 

We can find out that,
Tension=ML(L−I)gTension=ML(L−I)g
Because Force=m⋅aForce=m⋅a
and a=ga=g