💬 👋 We’re always here. Join our Discord to connect with other students 24/7, any time, night or day.Join Here!

Get the answer to your homework problem.

Try Numerade free for 7 days

Like

Report

$\bullet$ Traction apparatus. In order toprevent muscle contraction frommisaligning bones during healing(which can cause a permanentlimp), injured or broken legs mustbe supported horizontally and at thesame time kept under tension (trac-tion) directed along the leg. One version of a device to accom-plish this aim, the Russell traction apparatus, is shown inFigure $5.41 .$ This system allows the apparatus to support thefull weight of the injured leg and at the same time provide thetraction along the leg. If the leg to be supported weighs$47.0 \mathrm{N},$ (a) what must be the weight of $W$ and $(\mathrm{b})$ what tractionforce does this system produce along the leg?

a.47 $\mathrm{N}$b.85.2 $\mathrm{N}$

Physics 101 Mechanics

Chapter 5

Applications of Newton's Law

Motion Along a Straight Line

Motion in 2d or 3d

Newton's Laws of Motion

Applying Newton's Laws

Cornell University

University of Washington

Hope College

University of Winnipeg

Lectures

04:16

In mathematics, a proof is…

04:48

In mathematics, algebra is…

05:14

$\bullet$ Russell traction…

02:38

A broken thigh bone. When …

11:16

BIO The Russell Traction S…

01:08

Patients with severe leg b…

03:39

$\bullet$$\bullet$ A fract…

12:45

Find the tension in the Ac…

01:35

A leg is suspended in a tr…

03:14

A setup similar to the one…

07:18

An accident victim with a …

09:08

When a person stands on ti…

08:36

$ 810$ Injuries to the Spi…

04:05

06:06

0:00

In the treatment of spine …

05:15

A young boy with a broken …

05:32

$\bullet$ The forces on th…

03:26

Consider the 52.0-kg mou…

05:06

Consider the 52.0-kg mount…

04:19

Consider the 52.0 -kg moun…

10:08

The person in Figure P4.49…

Okay. So today we have what looks like a pretty confusing problem. I mean, what's going on with all of these poets, Right. But if you think about it, you can do some pretty major supplication simplifications, For example, You have to remember that pulleys on Lee served to reverse the direction of a force, but they never actually mess with the magnitude of the force. So we can pretty much ignore all of all of these please. And we get to the point where we have this simplified system where we have one pulley, which is which is this main point. And it feels a force this way. A port which is the force of the foot, the traction force. And then it has two other strings that are angle a 25 degrees and one of the strings. If you follow it, you can see that it's actually the weight off the leg. This weight of the leg, Um, and the other shrink has the weight of this mass over here. So you have W for your weight of the maths, and you have w sub l for the weight of the leg, and that's our free body diagram and were asked What does the weight of this mass have to be so that basically the leg doesn't move? I never like to not move. If you look at Thisun Tire pulley system, you see that this way has to be equal to this week for the system to not move. So we get that the weight of the mass has to be equal to the weight of the leg, which is equal to 47 point own Newtons. So that's our answer for part eight part B were asked What is the traction Force T sub for the police and the attraction for us? We can see over here we have a nice little triangle. That was a pretty sad drawing. A triangle. But we have a triangle over here where you have 25 degrees as the angle over here you have. This is the high part news and you have This is the adjacent sides and we want to find the force for the adjacent side because that is what opposes this force and will give us the doubt. The downward pointing horse in this free body diagram. So we take the co sign of 25 degrees and we get 47 times a co signed 25 degrees. Um, for one of the components over here, we have to remember that there are two components of force. See, we have this one, and we have this one, and they are the same. So we just multiply this whole thing by to to get our answer. Part B, which is about 85 point to Newton's nothing.

View More Answers From This Book

Find Another Textbook

In mathematics, a proof is a sequence of statements given to explain how a c…

In mathematics, algebra is one of the broad parts of mathematics, together w…

$\bullet$ Russell traction apparatus. The device shown in Figure 10.75 is on…

A broken thigh bone. When the thigh is fractured, thepatient's leg …

BIO The Russell Traction System To immobilize a fracturedfemur (the thig…

Patients with severe leg breaks are often placed in traction, with an extern…

$\bullet$$\bullet$ A fractured tibia. While afractured tibia (the larger…

Find the tension in the Achilles tendon and the force that the tibia exerts …

A leg is suspended in a traction system, as shown below. (a) Which pulley in…

A setup similar to the one shown in Figure P4.53 is often used in hospitals …

An accident victim with a broken leg is being placed in traction. The patien…

When a person stands on tiptoe on one foot (a strenuous position $),$ the po…

$ 810$ Injuries to the Spinal Column. In the treatment of spine injuries, it…

A setup similar to the one shown in Figure P5.26 is often used in hospitals …

When a person stands on tiptoe on one foot (a strenuous position), the posit…

In the treatment of spine injuries, it is often necessary to provide tension…

A young boy with a broken leg is undergoing traction.(a) Find the magnit…

$\bullet$ The forces on the foot. $A 750 \mathrm{N}$ athlete standing on one…

Consider the 52.0-kg mountain climber shown below.(a) Find the tension…

Consider the 52.0-kg mountain climber in Figure 5.20. (a) Find the tension i…

Consider the 52.0 -kg mountain climber in Figure 5.22 (a) Find the tension i…

The person in Figure P4.49 weighs 170. lb. Each crutch makes an angle of $22…

11:12

Crystalline lens of the eye. The crystalline lens of the eye is double conve…

$\cdot$ You are standing on a sheet of ice that covers the footballstadi…

03:21

$\bullet$ An airplane propeller is rotating at 1900 $\mathrm{rpm.}$ (a) Comp…

04:33

(a) The recommended daily allowance (RDA) of the trace metal magnesium is 41…

00:55

Emilie's potter's wheel rotates with a constant 2.25 $\mathrm{rad}…

06:19

$\bullet$ Calculate the earth's speed in its orbit around the sun, in $…

05:09

Space station. You are designing a space station and want to get some idea h…

01:32

A laser beam aimed from the earth is swept across the face of the moon. (a) …

03:20

In a laboratory experiment, you vary the current through an object and measu…

02:31

$\bullet$ Derive Eq. 9.12 by combining Eqs. 9.7 and 9.11 toeliminate $t …