A person jumps out a fourth-story window 18.0 m above a firefighter's safety net. The survivor stretches

Question:

A person jumps out a fourth-story window 18.0 m above a firefighter's safety net. The survivor stretches the net 1.0m before coming to rest, Fig. 2-45.

(a) What was the average deceleration experienced by the survivor when she was slowed to rest by the net?

(b) What would you do to make it "safer" (that is, to generate a smaller deceleration): would you stiffen or loosen the net? Explain.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Physics Principles with Applications

ISBN: 978-0321762429

7th edition

Authors: Douglas C. Giancoli

See More Books

Question Posted: Oct 05, 2017 07:46 AM

See More Questions

A person jumps from a fourth story window 15.0m above a firefighters safety net. The survivor stretches the net 1.0m before coming to rest. Fig 2-37. (a) What was the average deceleration experienced...
A person jumps off a diving board 4.0m above the waters surface into a deep pool. The persons downward motion stops 2.0m below the surface of the water. Estimate the average deceleration of the...
A person jumps from the roof of a house 3.9-m high. When he strikes the ground below, he bends his knees so that his torso decelerates over an approximate distance of 0.70m. If the mass of his torso...
Assume a portfolio of two assets with the following total value (Al) covariance matrix 1 -0.5 -0.5 1 The sum of the 99% component VaRs of the two assets is:
Consider a low-pass signal with a bandwidth of 3 kHz. A linear delta modulation system, with step size = 0.1V, is used to process this signal at a sampling rate ten times the Nyquist rate. (a)...
Three cables are used to tether a balloon as shown. Knowing that the balloon exerts an 800-N vertical force at A, determine the tension in each cable. 5.60 m 4.20 m 3.30 m 4.20 m 2.40 m
The solar constant is defined as the average flux of solar energy incident on the outer fringes of the Earth's atmosphere and a commonly used value is $1.353 \mathrm{~kW} / \mathrm{m}^{2}$. If the...
Summit Apparel has the following accounts at December 31: Common Stock, $1 par value, 2,000,000 shares issued; Paid-in Capital, $18 million; Retained Earnings, $11 million; and Treasury Stock, 60,000...
Marc, a single taxpayer, earns $ 1 7 9 , 5 0 0 in taxable income and $ 5 , 5 5 0 in interest from an investment in city of Birmingham bonds. Using the U . S . tax rate schedule for year 2 0 2 3 ,...
A. One of the most important skills to learn in managerial economics is the ability to identify a good business. Discuss at least four characteristics of a good business. B. Identify and talk about...
A sports car accelerates approximately as shown in the velocity-time graph of Fig. 2-43. (The short flat spots in the curve represent manual shifting of the gears.) Estimate the car's average...
A bicyclist in the Tour de France crests a mountain pass as he moves at15 km / h. AT the bottom, 4.0 km farther, his speed is 65 km / h. Estimate his average acceleration (in m / s2) while riding...
A survey of MBA students obtained the following data on Students first reason for application to the school in which they matriculated. a. Develop a joint probability table using these data. b. Use...
Write a recursive method to compute the binomial coefficient using the definition shown below: \[ \begin{aligned} \operatorname{binomial}(n, k)=\{ & \text { if } k=0 \text { or } n=k, \text { then }...
Determine the output from the following code segment: int outer = 1; while (outer < 4) { int inner = 1; while (inner
Consider the program in Fig. 8.10 where Lines 22 and 23 are swapped. Draw a series of contour diagrams to show the state of execution for $n=3$. import java.util.*; class Ch8Sample2 ( public static...
Write a program that asks a user to enter a file name and three numbers, and then store the three numbers in the user-specified file. After the execution of the program, open the file with a utility...
Determine the output from the following code segment: String star; star int i; for (i=0; i <5;i++) { } System.out.println (star); star + star;
Jerome was a salesperson for Edge Electronics Inc, which makes smartphone handsets and sells them only in Canada. He signed an agreement that said, among other things, that if he left his job, he...
A woman at a point A on the shore of a circular lake with radius 2 mi wants to arrive at the point C diametrically opposite on the other side of the lake in the shortest possible A time. She can walk...
A bullet traveling horizontally at a speed of 350 m/s hits a board perpendicular to its surface passes through and emerges on the other side at a speed of 210 m/s. If the board is 4.00 cm thick, how...
(a) Show that the area under the curve of a velocity-versus-time plot for a constant acceleration is equal to the displacement. (b) Compute the distance traveled for the motion represented by Fig....
An object initially at rest experiences an acceleration of on a level surface. Under these conditions, it travels 6.00 m. Lets designate the first 3.00 m as phase 1 with a subscript of 1 for those...
What are the advantages and disadvantages of utilizing PostgreSQL's advanced indexing techniques such as GiST and GIN?
discuss the implications and trade-offs of utilizing PostgreSQL's advanced security features such as row-level security (RLS) and column-level encryption in compliance-sensitive applications...
How does PostgreSQL's support for advanced full-text search capabilities through extensions like pg_trgm and tsearch improve search functionality and performance in applications requiring...

A person jumps out a fourth-story window 18.0 m above a firefighter's safety net. The survivor stretches

Question:

18.0 m

Step by Step Answer:

a For the freefalling part of the motion choose downward to be the positive direct...View the full answer

Physics Principles with Applications

Students also viewed these Mechanics questions