A wire is suspended from the ceiling and

Question:

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

Solution:

The correct answers are

(a) tensile stress at any cross-section A of the wire is F/A

(d) tension at any cross-section A of the wire is F

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