Question: A helicopter is using a steel cable to lift a 2100-kg jeep (see the figure). The unstretched length of the cable is 16 m, and

A helicopter is using a steel cable to lift a 2100-kg jeep (see the figure). The unstretched length of the cable is 16 m, and its radius is 5.0 Ã— 10-3 m. By what amount does the cable stretch when the jeep is hoisted straight upward with an acceleration of + 1.5 m/s2?

The jeep applies a force - to the lower end of the cable, thereby stretching it.
The free-body diagram for the jeep, showing the two forces acting on it.

ty +1.5 m/s -F (b) Free-body diagram for the jeep ra

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