When a rubber-band is stretched by a distance x, it exerts a restoring

1.	When a rubber-band is stretched by a distance x, it exerts a restoring force of magnitude F-xbx2where a and b are constants. The work done in stretching the unstretched rubber-band by L is:-JEE-Main-2014]2)2 2 34) al )
Answer» F = ax + bx^2 dw = F dx w =o∫L(ax + bx^2)dx w = aL^2/2 + bL^3/3 Really impressive, are you in 8th👏

When a rubber-band is stretched by a distance x, it exerts a restoring force of magnitude F-xbx2where a and b are constants. The work done in stretching the unstretched rubber-band by L is:-JEE-Main-2014]2)2 2 34) al )

Answer»

F = ax + bx^2

dw = F dx

w =o∫L(ax + bx^2)dx

w = aL^2/2 + bL^3/3

Really impressive, are you in 8th👏