question_answer 31)

                  A wire is suspended from the ceiling and stretched under the action of a weight F suspended from its other end. The force exerted by the ceiling on it is equal and opposite to the weight.                 (a) Tensile stress at any cross-section A of the wire is F/A.                 (b) Tensile stress at any cross-section is zero.                 (c) Tensile stress at any cross-section A of the wire is 2F/A.                 (d) Tension at any cross-section A of the wire is F.                

Answer:

                  (a, d) Tensile stress = F/A and Tension = applied force.