and b are constants. The work done in stretching this rubber band from x = 0 to x = L is: 4) When a certain rubber band is stretched a distance r, it exerts a restoring force F = ax + bx, where a も A) al? + bLx B) al + 26L? C) a+26L D) bL E) al2 + BL13

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A: Dear student,  "Since you have posted a question with multiple sub-parts, we will solve first three…

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A: W=F⇀·d⇀=8i+5j N·9 m=72 J+0 J=72 J

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A: From Energy conservation:   Work Done = Potential Energy

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A: The work done is given by  W = F→.d→ where, d is the displacement vector and F is the force vector.