**Problem 8-85:**A 180-lb farmer tries to restrain the cow from escaping by wrapping the rope two turns around the tree trunk. If the cow exerts a force of 250 lb on the rope, determine if the farmer can successfully restrain the cow. The coefficient of static friction between the rope and the tree trunk is \(\mu_s = 0.15\), and between the farmer’s shoes and the ground \(\mu_s' = 0.3\).**Illustration Description:**The image depicts a scenario where a farmer is attempting to restrain a cow using a rope. The setting includes:- **Tree:** A large tree is at the center of the scene, with the rope wrapped around its trunk twice.- **Farmer:** Positioned to the left, the farmer holds the rope and leans backward, applying force to prevent the cow from moving.- **Cow:** On the right side, the cow appears to be resisting, pulling against the rope.**Physics Explanation:**- The problem involves analyzing static friction which occurs in two sections: between the rope and tree trunk, and between the farmer's shoes and the ground.- The objective is to assess if the static friction is sufficient to counterbalance the pulling force exerted by the cow.

Answered: Image /qna-images/answer/25478b9d-9d62-4b8e-8708-6bad6c0fc78d.jpg

8-85. A 180-lb farmer tries to restrain the cow from escaping by wrapping the rope two turns around the tree trunk. If the cow exerts a force of 250 lb on the rope, determine if the farmer can successfully restrain the cow. The coefficient of static friction between the rope and the tree trunk is fs = 0.15, and between the farmer's shoes and the ground us = 0.3.

8-85. A 180-lb farmer tries to restrain the cow from escaping by wrapping the rope two turns around the tree trunk. If the cow exerts a force of 250 lb on the rope, determine if the farmer can successfully restrain the cow. The coefficient of static friction between the rope and the tree trunk is fs = 0.15, and between the farmer's shoes and the ground us = 0.3.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Q: 3. The uniform crate has a mass of 150 kg. If the coefficient of static friction between the crate…

A: Answer: m = 66.67 kg For a step-by-step solution have a look through the attached pictures of the…

Q: The man has a mass, m = 40 kg. He plans to scale the vertical crevice using the method shown. If the…

Q: A and B, each with mass 5 kg, are connected by the linkage illustrated. If the coefficient of static…

A: Here, from geometry-

Q: Can the statue be dragged without tipping? O Yes No Frip xN If the movers can apply the force…

Q: The block D weighs 200 lbs and is connected to the block B by a cable. Block B has a weight of 160…

Q: This climber (mass=52kg) is maintaining this posture while grabbing onto a rock at P3 and reaching…

Q: A man attempts to support a stack of books horizontally by applying a compressive force of F = 120 N…

A: solutionGiven dataF=120Nm=0.95 kgμsh=0.6μsb=0.4m=mass of each boock

Q: This climber (mass=52kg) is maintaining this posture while grabbing onto a rock at P3 and reaching…

Q: Determine the maximum value of weight W which may be applied without causing the 50-lb block to…

Q: 2. Two men are sliding a 100-kg crate up an incline. If the lower man pushes horizontally with a…

A: Please see the attached images for the solution. If there are queries or if the images are not…

Q: A roll of paper has a uniform weight of 2kN and is suspended from the wire hanger so that it rests…

A: Given, Weight of the roll paper = W = 2 kN Angle θ = 30o Coefficient of friction = μ = 0.3 Radius of…

Q: The 515-N force is applied to the 106-kg block, which is stationary before the force is applied.…

Q: 8-12. A chain having a length of 20 ft and weight of 81 rests on a street for which the coefficient…

Q: Determine friction force if P = 160N

A: Given the force.The mass of the crate.The static frictionThe kinetic friction

Q: The man having a weight of 90 kg pushes horizontally on the crate. If the coefficient of static…

Q: Determine the force P required to force the 17° wedge under the 75-kg uniform crate which rests…

Q: The 3-kg crate rests on the 10-kg cart where the coefficients of static and kinetic friction are ps…

A: The mass of the crateThe mass of the cartFrom the figure, the distance which the crate travels for…

Concept explainers

Basic Terminology in Mechanics

The area of science and mathematics concerned the motion of the objects, the relation between the force matter, and motion if specified. Forces exerted over the objects result in displacements or changes in the position of an object concerning its environment. This branch of physics keeps its roots in Ancient Greece in the form of the scripts of Aristotle and Archimedes.

Question

**Problem 8-85:**

A 180-lb farmer tries to restrain the cow from escaping by wrapping the rope two turns around the tree trunk. If the cow exerts a force of 250 lb on the rope, determine if the farmer can successfully restrain the cow. The coefficient of static friction between the rope and the tree trunk is \(\mu_s = 0.15\), and between the farmer’s shoes and the ground \(\mu_s' = 0.3\).

**Illustration Description:**

The image depicts a scenario where a farmer is attempting to restrain a cow using a rope. The setting includes:

- **Tree:** A large tree is at the center of the scene, with the rope wrapped around its trunk twice.
- **Farmer:** Positioned to the left, the farmer holds the rope and leans backward, applying force to prevent the cow from moving.
- **Cow:** On the right side, the cow appears to be resisting, pulling against the rope.

**Physics Explanation:**

- The problem involves analyzing static friction which occurs in two sections: between the rope and tree trunk, and between the farmer's shoes and the ground.
- The objective is to assess if the static friction is sufficient to counterbalance the pulling force exerted by the cow.

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

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 3 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, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

The 180-lb tree surgeon lowers himself with the rope over a horizontal limb of the tree. If the coefficient of friction between the rope and the limb is 0.60, compute the magnitude of the force applied to the rope by the tree surgeon's hands to let himself down slowly. Express your answer in units of lb.
Determine the force P that will cause impending motion. Also determine location of the resultant force acting on the crate, measured from the point A. (M=200 kg, a=1 m, b=2m, c=0.5 m, d34, e=3 and coefficient of friction is 0.3) a
The beam AB has a negligible mass and thickness and is subjected to a triangular distributed loading. It is supported at one end by a pin and at the other end by a post having a mass of 50 kg and negligible thickness. Determine the two coefficients of static friction at B and at C so that when the magnitude of the applied force is increased to P = 150 N, the post slips at both B and C simultaneously. Take F = 940 N/m. (Figure 1) Figure -2 m 400 mm 300 mm Part A Determine the coefficient of static friction at B Express your answer using three significant figures. HB = Submit Part B HC = Submit ΕΠ ΑΣΦ VI Determine the coefficient of static friction at C. Express your answer using three significant figures. Provide Feedback ↓↑ vec • Request Answer Π|| ΑΣΦ ↓↑ Request Answer vec ? ?
AI The block D weighs 200 lbs and is connected to the block B by a cable. Block B has a weight of 160 lb acting at its center of gravity, CG,8, and Block B has a weight of 100 lb acting at its center of gravity, CG,A. The coefficient of friction between blocks A and B is uAB = 0.85. 1,15m 1.15m The coefficient of friction between block A and the ground is HAG = 0.4. a) Determine if slipping will occur between block B and block A. b) Determine if blocks A and B will tip on the ground (assume no slipping at A-B for this scenario).
Determine the coefficient of static friction between the friction pad at A and ground if the inclination of the ladder is 0 =60° and the wall at B is smooth when the 82-kg man climbs up the leader and stops at the position shown after he senses that the leader is on the verge of slipping. The center of gravity for the man is at G. Neglect the weight of the leader.
The 491-N force is applied to the 102-kg block, which is stationary before the force is applied. Determine the magnitude and direction of the friction force Fexerted by the horizontal surface on the block. The force is positive if to the right, negative if to the left. P = 491 N 40° = 0.61 Hk = 0.45 Answer: F i N
The 463-N force is applied to the 89-kg block, which is stationary before the force is applied. Determine the magnitude and direction of the friction force F exerted by the horizontal surface on the block. The force is positive if to the right, negative if to the left. P = 463 N 32° H = 0.60 H = 0.44 Answer: F = 276.20 is wrong
Find the least value of P and its inclination from the horizontal that will just start the system of block moving to the right. The coefficient of friction under each block is 0.30. The pulley is frictionless and Block A weighs 300N and block B weighs 400N. В 30°
Two blocks A and B have a weight of 10 lb and 6 lb, respectively. They rest on the inclined plane whose coefficients of static friction are A=0.15 and B 0.25 respectively. Determine the angle of inclination X for which both blocks begin to slide. Also find the required elongation or compression in the spring connecting them for this to occur. The spring has a stiffness of k 2 lb/ft.
- Blocks A and B have a mass of 7 kg and 10 kg, respectively, and there are pulleys at C and D. Using the coefficients of static friction indicated, determine the following: 1- The smallest force P which can be applied to the cord that causes impending motion. 2- Does block B spill, flip over, or nothing happen? Prove that. 400 mm B PAB=0.1 A P T 500 mm Kha=0.3
The coefficient of static friction between the 50-kg crate and the ramp is μs = 0.35. The unstretched length of the spring is 800 mm, and the spring constant is k = 660 N/m. Determine the following: 1 The normal force acting on the crate is Blank 1 N. 2 The friction force acting on the crate is Blank 2 N. 3 The minimum value of x at which the crate can remain stationary on the ramp is Blank 3 mm.
Homework: In hot rolling process, the following data was collected: N=20rpm, R=20cm, to=40mm, tF35mm, C=415MPA, m=0.02, w-60cm one pass rolling. Find Froll, T and Power.