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In a daring rescue by helicopter, two men with a combined
Chapter 6, Problem 89GP(choose chapter or problem)
Problem 89GP
In a daring rescue by helicopter, two men with a combined mass of 172 kg are lifted to safety. (a) If the helicopter lifts the men straight up with constant acceleration, is the tension in the rescue cable greater than, less than, or equal to the combined weight of the men? Explain. (b) Determine the tension in the cable if the men are lifted with a constant acceleration of 1.10 m/s2.
Questions & Answers
QUESTION:
Problem 89GP
In a daring rescue by helicopter, two men with a combined mass of 172 kg are lifted to safety. (a) If the helicopter lifts the men straight up with constant acceleration, is the tension in the rescue cable greater than, less than, or equal to the combined weight of the men? Explain. (b) Determine the tension in the cable if the men are lifted with a constant acceleration of 1.10 m/s2.
ANSWER:
Solution 89GP
Step 1 of 3
(a)
For the given case of rescue helicopter, which is used to lift safely two men with combined mass . We need to comment whether the tension in the rescue cable is greater, less or equal to the combined weight of men when the helicopter lifts the men straight upwards with constant acceleration.
The free body diagram for the given case can be written as shown below,
