55. A 59-kg water skier is being pulled by a nylon tow rope that is at- tached to a boat. The unstretched length of the rope is 12 m, and its cross- sectional area is 2.0 × 10-5 m². As the skier moves, a resistive force (due to the water) of magnitude 130 N acts on her; this force is directed opposite to her motion. What is the change in the length of the rope when the skier has an acceleration whose magnitude is 0.85 m/s²?

55. A 59-kg water skier is being pulled by a nylon tow rope that is at- tached to a boat. The unstretched length of the rope is 12 m, and its cross- sectional area is 2.0 × 10-5 m². As the skier moves, a resistive force (due to the water) of magnitude 130 N acts on her; this force is directed opposite to her motion. What is the change in the length of the rope when the skier has an acceleration whose magnitude is 0.85 m/s²?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter14: Static Equilibrium, Elasticity, And Fracture

Section: Chapter Questions

Problem 57PQ: A copper rod with length 1.4 m and cross-sectional area 2.0 cm2 is fastened to a steel rod of length...

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