PhysicsMedium70×since 2002Q8616When a rubber-band is stretched by a distance xxx, it exerts restoring force of magnitude F=ax+bx2F = ax + b{x^2}F=ax+bx2 where aaa and bbb are constants. The work done in stretching the unstretched rubber-band by LLL is :AaL2+bL3a{L^2} + b{L^3}aL2+bL3B12(aL2+bL3){1 \over 2}\left( {a{L^2} + b{L^3}} \right)21(aL2+bL3)CaL22+bL33{{a{L^2}} \over 2} + {{b{L^3}} \over 3}2aL2+3bL3D12(aL22+bL33){1 \over 2}\left( {{{a{L^2}} \over 2} + {{b{L^3}} \over 3}} \right)21(2aL2+3bL3)Check answerSkip