If all the dimensions of a prismatic bar of square cross section suspended freely from the ceiling of a roof are doubled then the total elongation produced by its own weight will increase
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4
Answer:
The total elongation produced by its own weight will increase is four times.
Explanation:
According to the problem the length of the prismatic bar are doubled.
We know that, elongation produced by its own weight will increase for prismatic bar is = λL^2/2E.
where λ= specific weight
L= length.
so if length is doubled it will increased 4 times.
Answered by
1
It will increase by 4 times.
Bcz according to formula.. ∆l is proportional to the square of the length
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