(a) Distinguish between stress and strain as used in elasticity. (b) When a force of 40 N is applied to the free end of an elastic cord, an extension of 5cm...
(a) Distinguish between stress and strain as used in elasticity.
(b) When a force of 40 N is applied to the free end of an elastic cord, an extension of 5cm is produced in the cord. Calculate the work done on the cord.