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# Solved: A rescue helicopter is hovering over a person

ISBN: 9781938168000 42

## Solution for problem 44PE Chapter 2

College Physics | 1st Edition

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Problem 44PE

Problem 44PE

A rescue helicopter is hovering over a person whose boat has sunk. One of the rescuers throws a life preserver straight down to the victim with an initial velocity of 1.40 m/s and observes that it takes 1.8 s to reach the water. (a) List the knowns in this problem. (b) How high above the water was the preserver released? Note that the downdraft of the helicopter reduces the effects of air resistance on the falling life preserver, so that an acceleration equal to that of gravity is reasonable.
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Solution  44 PE

A rescue helicopter is hovering over a person whose boat has sunk. One of the rescuers throws a life preserver straight down to the victim with an initial velocity of 1.40 m/s and observes that it takes 1.8 s to reach the water.

We have to list the knowns in the problem and also how high above the water was the preserver released?o

a.)

Its a problem of one-dimensional motion involving gravity and can be solved using kinematic equation for objects in free fall where acceleration is .

The knowns in this problem are initial position, initial velocity ,time in free fall

b.)

From...

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##### ISBN: 9781938168000

This full solution covers the following key subjects: preserver, helicopter, Water, life, observes. This expansive textbook survival guide covers 34 chapters, and 3125 solutions. Since the solution to 44PE from 2 chapter was answered, more than 319 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 44PE from chapter: 2 was answered by , our top Physics solution expert on 07/07/17, 04:39PM. College Physics was written by and is associated to the ISBN: 9781938168000. The answer to “A rescue helicopter is hovering over a person whose boat has sunk. One of the rescuers throws a life preserver straight down to the victim with an initial velocity of 1.40 m/s and observes that it takes 1.8 s to reach the water. (a) List the knowns in this problem. (b) How high above the water was the preserver released? Note that the downdraft of the helicopter reduces the effects of air resistance on the falling life preserver, so that an acceleration equal to that of gravity is reasonable.” is broken down into a number of easy to follow steps, and 89 words. This textbook survival guide was created for the textbook: College Physics , edition: 1.

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