- #1
shalikadm
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A light rod is hung by two wires having same length of 2m and the same young's modulus of 8[itex]\times[/itex]1011Pa,but having different cross sectional areas of 1mm2 and 2mm2.
The wire having the cross sectional area of 1mm2,gets an increment of 2mm in length because of a temperature increment.But the other wire remains same..
A mass of 100kg is meant to be put on the rod to keep the rod horizontal..How much distance has it to be on the rod from point A...?
PLEASE SOLVE THIS CITING REASONS...thanks !