1.

A uniform bar of square cross-section is lying along a frictionless horizontal surface. A horizontal force is applied to pull it from one of its ends then

Answer»

The bar I sunder same stress throughout its length
The bar is not under any stress because forces has been APPLIED only at ONE END
The bar simply MOVES without any stress in it
The stress developed REDUCES to zero at the end of the bar where no force is applied

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