---
title: "A rescue helicopter lifts a 79 kg person straight up by means of a cable. The person has an upward acceleration of 0.70 m/s2 and is lifted through a distance of 11 m."
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url: "https://nerd-notes.com/ubq/23203/"
date_modified: "2024-02-10T22:58:36+00:00"
---

# A rescue helicopter lifts a 79 kg person straight up by means of a cable. The person has an upward acceleration of 0.70 m/s2 and is lifted through a distance of 11 m.

A rescue helicopter lifts a 79 kg person straight up by means of a cable. The person has an upward acceleration of 0.70 m/s2 and is lifted through a distance of 11 m.

**Part a)** What is the tension in the cable? *(3 points)*

**Part b)** How much work is done by the tension in the cable? *(3 points)*

**Part c)** How much work is done by the person’s weight? *(3 points)*

**Part d)** Assume the person starts from rest. Using just energy find the final speed of the person. Show all working. *(3 points)*


*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/23203/*