If a uniform bar is supported at one end in a vertical direction and loaded at the bottom end by a load equal to the weight of the bar, the strain by a load equal to the weight of the bar, the strain energy as compared to that due to self-weight will be-
  • a)
    Same
  • b)
    Half
  • c)
    Twice
  • d)
    Thrice
Correct answer is option 'C'. Can you explain this answer?

SSC Question

Knowledge Hub
Jun 15, 2021
Strain energy (U)(=½(WΔ))
Now, axil deformation due to load W is given by (Δ1=WL/AE)axial deformation due to self-weight W is given by (Δ2=WL/2AE)
(NowΔ1=2Δ2)(and U∞Δ)
Hence strain energy due to load W is given by (U1=(1/2)WΔ1)
(U1=2U2)
Hence strain energy as compared to that due to self-weight will be double.
Hence the option C is correct.

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This discussion on If a uniform bar is supported at one end in a vertical direction and loaded at the bottom end by a load equal to the weight of the bar, the strain by a load equal to the weight of the bar, the strain energy as compared to that due to self-weight will be-a)Sameb)Halfc)Twiced)ThriceCorrect answer is option 'C'. Can you explain this answer? is done on EduRev Study Group by SSC Students. The Questions and Answers of If a uniform bar is supported at one end in a vertical direction and loaded at the bottom end by a load equal to the weight of the bar, the strain by a load equal to the weight of the bar, the strain energy as compared to that due to self-weight will be-a)Sameb)Halfc)Twiced)ThriceCorrect answer is option 'C'. Can you explain this answer? are solved by group of students and teacher of SSC, which is also the largest student community of SSC. If the answer is not available please wait for a while and a community member will probably answer this soon. You can study other questions, MCQs, videos and tests for SSC on EduRev and even discuss your questions like If a uniform bar is supported at one end in a vertical direction and loaded at the bottom end by a load equal to the weight of the bar, the strain by a load equal to the weight of the bar, the strain energy as compared to that due to self-weight will be-a)Sameb)Halfc)Twiced)ThriceCorrect answer is option 'C'. Can you explain this answer? over here on EduRev! Apart from being the largest SSC community, EduRev has the largest solved Question bank for SSC.