18. A uniform cylindrical rod of length L, cross-section A
and Young's modulus Yis acted upon by the forces
as shown in figure. The elongation of the rod is
(1) 2F/5AY
(2) 3F/5AY
(3)3F/8AY
(4)8F/5AY
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3 is right answer I am not clear sorry
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A uniform cylindrical rod of length L, cross-section A
and Young's modulus Yis acted upon by the forces
as shown in figure. The elongation of the rod is
(1) 2F/5AY
(2) 3F/5AY
(3)3F/8AY
(4)8F/5AY
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