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A uniform rod of length 2L, area of cros...

A uniform rod of length 2L, area of cross - section A and Young's modulus Y is lying at rest under the action of three forces as shown.

Select the correct alternatives.

A

The stress at any cross - section is `(2F)/(A)`

B

The stress at any cross-section in section AB is `(F)/(A)`

C

The total extension is `(3FL)/(AY)`

D

The total extension is `(6FL)/(AY)`

Text Solution

Verified by Experts

The correct Answer is:
B, C
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Knowledge Check

  • A metal wire of length L, area of cross-section A and Young's modulus Y behaves as a spring of spring constant k.

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