1. During a circus act, one performer swings upside down hanging from a trapeze holding another, also upside-down, performer by the legs. If the upward force on the lower performer is three times their weight, how much do the bones (the femurs) in their upper legs stretch? You may assume each is equivalent to a uniform rod 35.0 cm long and 1.80 cm in radius. Her mass is 65.0 kg. The Young's modulus for bones is 1.6 x 10¹0 N/m². Think & Prepare 1. For this problem, assume that the leg bones are uniform rods. 2. What kind of stress does the legs of the trapeze artist experience? Tensile, compressive or shear stress? How will you fund the cross-sectional area of the bone? 3. What type of elastic modulus is appropriate for this problem? 4. If the total upward force on the artist is given, what is the force on each leg? Enter to 3 significant figures Amount by which the femurs stretch= cm Reflect: Is this stretch large or small? Compare it to the length of the leg.

1. During a circus act, one performer swings upside down hanging from a trapeze holding another, also upside-down, performer by the legs. If the upward force on the lower performer is three times their weight, how much do the bones (the femurs) in their upper legs stretch? You may assume each is equivalent to a uniform rod 35.0 cm long and 1.80 cm in radius. Her mass is 65.0 kg. The Young's modulus for bones is 1.6 x 10¹0 N/m². Think & Prepare 1. For this problem, assume that the leg bones are uniform rods. 2. What kind of stress does the legs of the trapeze artist experience? Tensile, compressive or shear stress? How will you fund the cross-sectional area of the bone? 3. What type of elastic modulus is appropriate for this problem? 4. If the total upward force on the artist is given, what is the force on each leg? Enter to 3 significant figures Amount by which the femurs stretch= cm Reflect: Is this stretch large or small? Compare it to the length of the leg.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Related questions

Q: 2. A pachyderm stands near the end of a beam contemplating the nuances of the plotline of the last…

Q: One end of a uniform, 4-m-long rod of weight, W, is supported by a string. The other end is resting…

Q: 1. (solving a free body diagram with a resultant load but no moment equation) = A bar of density p…

A: Step 1 of 2: We need to determine the support reaction at the solid support by integrating the total…

Q: How much force does it take to stretch a 5 m long, 1.0 cm diameter steel cable by 3.0 mm? Th Young's…

A: length = L = 5 cm= 0.05 m diameter = 2r = 1 cm radius = r = 0.05 cm area = A =π r2 = 3.14 x 0.05 x…

Q: uppose such a cable is strung between poles spaced 500 meters apart across a rural landscape. The…

Q: The man is supporting his weight with friction. He's pressing into the rock walls with his feet and…

A: This is a question regarding friction and the balancing of forces. The formula to calculate the…

Q: One end of a uniform 2.0-m-long rod of weight o is supported by a cable at an angle of 0 = 37 with…

A: From the above figure, the equilibrium condition of force in the horizontal direction Tcosθ=N…

Q: A horizontal 4.0 m long 5.0 N uniform bar at one end is attached to a wall by a frictionless hinge;…

Q: Watch your units and choose Young's modulus wisely. Relevant information is given in the textbook.…

A: thank you

Q: 10. One end of a 1.5 kg uniform stick that is 2.0 m long is placed against a vertical wall as shown.…

A: The objective of the question is to find the maximum value of the angle theta for the stick to…

Q: What is the value of the angle h (in degrees)if G = 100 N and H = 75 N?

Q: A 18.0 m tall hollow aluminum flagpole is equivalent in strength to a solid cylinder of aluminum…

Q: The forearm in the figure accelerates a 3.5-kg ball at 6.0 m/s² by means of the triceps muscle, as…

A: Given- mass of ball , mb= 3.5 kg acceleration of ball , a = 6.0 m/s2 perpendicular distance of ball…

Q: 1. A 1500-kg car has 3.5 m between its front and rear axles. When parked on a horizontal floor, it…

A: Draw the free body diagram of the car.

Q: 17. An 100 kg block dangles from the knot formed by 2 strings suspended from the ceiling at angle of…

Q: 3. A biomechanical model of the lumbar region of the human trunk is shown. The forces acting in the…

Q: end of a uniform meterstick is placed against a vertical wall. The other end is held by a…

A: Net Torque and coefficient friction Torque is way of describing the force that is working to cause…

Q: Two people are carrying a uniform wooden board that is 3.20 m long and weighs 180 N . 1) If one…

Q: 3. A uniform beam of length L and mass of m, is pinned at one end and is being supported by a wire…

Q: A 22.0 m tall hollow aluminum flagpole is equivalent in strength to a solid cylinder of aluminum…

A: The length of the aluminum flagpole, L0=22.0 m The diameter of the aluminum flagpole, D=4.00 cm =…

Q: A 20.0-m tall hollow aluminum flagpole is equivalent in stiffness to a solid cylinder 4.00 cm in…

A: The expression for the required distance is,

Q: You have been tasked with retrieving a crate from a 4-m long beam that is suspended by two cables,…

A: Given Data: The length of the beam is: l=4 m The distance of the person from the left end of the…

Q: 10. One end of a 1.5 kg uniform stick that is 2.0 m long is placed against a vertical wall as shown.…

A: The objective of the question is to find the maximum value of the angle theta for the stick to…

Q: A wooden board of mass M and length L is hung from the 4. ceiling by two massless wires attached to…

A: Given : Mass of the wooden board = M = 10 kg Length of the wooden board = L Mass of the…

Q: A uniform beam of mass 20 kg is suspended horizontally by a wall at one end and a cable that makes…

Q: During a circus act, one performer swings upside down hanging from a trapeze holding another, also…

A: The expression for the stretched length on each leg is,

Q: 10. An object weighing 225 N is supported by a uniform 120 N horizontal beam as shown in the figure.…

Q: Part (a) Calculate the tension T¡ on the left side of the rope, in newtons, if the man is in static…

Q: 3) A massless bar AC is supported by a pin joint at A and cable CD. Mass m is suspended from bar AC…

Q: During a wrestling match, a 158 kg wrestler briefly stands on one hand during a maneuver designed to…

Q: against the wall, where it is held by friction as shown in the figure below. The coefficient of…

Concept explainers

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.

Question

100%

1. During a circus act, one performer swings upside down hanging from a trapeze holding another, also
upside-down, performer by the legs. If the upward force on the lower performer is three times
their weight, how much do the bones (the femurs) in their upper legs stretch? You may assume each
is equivalent to a uniform rod 35.0 cm long and 1.80 cm in radius. Her mass is 65.0 kg. The Young's
modulus for bones is 1.6 x 1010 N/m².
Think & Prepare
1. For this problem, assume that the leg bones are uniform rods.
2. What kind of stress does the legs of the trapeze artist experience? Tensile, compressive or shear
stress? How will you fund the cross-sectional area of the bone?
3. What type of elastic modulus is appropriate for this problem?
4. If the total upward force on the artist is given, what is the force on each leg?
Enter to 3 significant figures
Amount by which the femurs stretch
=
cm
Reflect: Is this stretch large or small? Compare it to the length of the leg.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1: Determine the given variable

VIEW

Step 2: Find change in each femur

VIEW

Solution

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

1. During a circus act, one performer swings upside down hanging from a trapeze holding another, also upside-down, performer by the legs. If the upward force on the lower performer is three times their weight, how much do the bones (the femurs) in their upper legs stretch? You may assume each is equivalent to a uniform rod 35.0 cm long and 1.80 cm in radius. Her mass is 59.0 kg. The Young's modulus for bones is 1.6 x 10¹⁰ N/m². Think & Prepare 1. For this problem, assume that the leg bones are uniform rods. 2. What kind of stress does the legs of the trapeze artist experience? Tensile, compressive or shear stress? How will you fund the cross-sectional area of the bone? 3. What type of elastic modulus is appropriate for this problem? 4. If the total upward force on the artist is given, what is the force on each leg? Enter to 3 significant figures Amount by which the femurs stretch = 0.381 cm Reflect: Is this stretch large or small? Compare it to the length of the leg.
2. A uniform ladder weighing 330. N is leaning against a wall. The ladder slips when the angle with the floor is 50.00. Assuming the coefficient of static friction at the wall and the floor are the same, obtain a value for us.
A 2.0-m-long rod has a density in kilograms per meter A = a + bx ,where a = 1.0 kg/m, b = 1.0 k9/m², and x is the distance from the left end of the rod. The rod rests horizontally with each end supported by a scale. The force exerted by the left scales is 39.2 N 22.9 N 16.3 N 4.0 N 32.6 N
1. Solve for the tension on the cord and the compression on the wooden bar. (neglect the weight of the wooden bar) 450 60 600N
please quickly thanks ! An object weighing 450 N is attached to a vertical massless ideal spring. If the spring constant is 255 N/m , how much is the spring stretched when the block is in equilibrim?
2. Use the equilibrium conditions to find the weights w1, w2, and w; required to balance the mobile. Hint: start from the bottom rung and apply the conditions for equilibrium, then work your way up. 4 cm 8 cm 5 cm 1 cm W3 2 cm 4 cm w2 W1 0.5 N
45. A bar AB, of length 0.6 m and weight 3 N is suspended horizontally by two strings at its ends A and B. Given that its centre of gravity is 0.4 m from A, then the tension in the string at A is A 0.2 N B 1.4 N C 0.8 N D 1.0 N