1.

uperties of SolidsBoard & Competitive Examsa load of 10 kg is hung from the wire, then extension of 2 m is produced. Then work done by restoringforce is(1) 200(3) 50 JSubstances which can be elastically stretrh(2) 100 J(4) 25 J5.

Answer»

the answer to this question is 200 J

the work done is given by F.S

and force is = mg = 10*10 = 100N so, work done = 10*10*2 = 200J



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