Define stress and strain.

Which is more fundamental between stress and strain for an elastic body?

When a tensile force of 60 N is applied to a metal wire of length 50 m and ara of cross- section 10^(-6)m^(2) , elengation of the wire is 4xx10^(-3) m. calculate (i) stress and (ii) strain.

Define volume stress and Bulk modulus.

Which one among, strees and strain is more fundamental and why?

Define stress. A heavy wire is suspended from a roof and no weight is attached to its lower end. Is it under stress.

Calculate the change in length of a wire of length 5 m undergoing a strain of 1% of 0.1. IF the area of cross section of the wire is 1mm^2 and the load applied on it is 10 kg then find the ratio of stress to strain.

Young's modulus is Y = stress /strain. Here stress is the force of reaction per unit area and strain is the change of length per unit initial length. Find out dimension of Y. If velocity (V) acceleration (A) and force (F) are taken as the fundamental quantities in place of mass length and time then what will be the dimension of Y ?

IF the strain be 1% of 0.1, find the change in length of a wire 5 m long. If the cross-section is 1 mm^(2) and load 19 kg.wt, what is the ratio of stress to strain ?