A worker is raising a 9.2-m-long ladder of mass 53 kg as shown. Knowing that the force

Question:

A worker is raising a 9.2-m-long ladder of mass 53 kg as shown. Knowing that the force exerted by the worker is perpendicular to the ladder, determine

(a) The smallest value of a for which the vertical component of the reaction at B is zero,

(b) The corresponding force exerted by the worker.

1.75 m

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

Step by Step Answer:

Related Book For book-img-for-question

Vector Mechanics for Engineers Statics and Dynamics

ISBN: 978-0073212227

8th Edition

Authors: Ferdinand Beer, E. Russell Johnston, Jr., Elliot Eisenberg, William Clausen, David Mazurek, Phillip Cornwell

See More Books

Question Posted: Sep 01, 2010 06:39 AM

See More Questions

(a) Calculate the force exerted by the muscle and the compression force on the fifth lumbar vertebra in Fig. 1.16. Use the information provided in the text. (b) Repeat the calculations in (a) for the...
1. Find the force exerted by the corner on the wheel in Example 12-4, just as the wheel lifts off the surface. 2. As a farewell prank on their alma mater, Sharika and Chico decide to liberate...
Find the force exerted by the biceps muscle in holding a 1-L milk carton (weight 9.9 N) with the forearm parallel to the floor. Assume that the hand is 35.0 cm from the elbow and that the upper arm...
rn rn Anushka (an Australian Tax resident) works as an employee for a child care centre, Brilliant Kids Pty Ltd, on a permanent part-time basis while she runs her business as a day carer for her own...
The United States contracted with Transatlantic Financing, the operator of a cargo ship, to transport wheat from Texas to Iran in 1956. The parties never agreed on the route the ship would take. Six...
A force of 30 N is required to maintain a spring stretched from its natural length of 12 cm to a length of 15 cm. How much work is done in stretching the spring from 12 cm to 20 cm?
1. Identify which channel and intermediaries will provide the best coverage of the target market for your product or service. 2. Specify which channel and intermediaries will best satisfy the...
Jana Crebs is a contractor for the construction of large office buildings. At the beginning of 2011, three buildings were in progress. The following data describe the status of these buildings at the...
Solve it quickly within 15 to 30 minutes . Please do it asap . I will give two upvotes immediately. 21 (4 Points) Direct material cost is a: A) B) C) D) Conversion cost Prime cost No Yes No No Yes...
Would you suggest applying Buckingham's steps to your organization? Why or why not?
A worker is raising a 9.2-m-long ladder of mass 53 kg as shown. Knowing g a = 1.8 m and that the force exerted by the worker is perpendicular to the ladder, determine, (a) The force exerted by the...
To remove the lid from a 5-gallon pail, the tool shown is used to apply an upward and radially outward force to the bottom inside rim of the lid. Assuming that the rim rests against the tool at A and...
Use the information presented in P22-13 for the Farrell Corporation. Required 1. Using the direct method for operating cash flows, prepare a worksheet (spreadsheet) to support a 2007 statement of...
The employee.class.php file contains an abstract, base class named Employee . One of the attributes of the class is an object of Person . This demonstrates one of the three relationship types among...
A direct shear test is performed on a saturated specimen of loose sand. A normal stress equal to 100 kPa is applied and a maximum shear stress of 75 kPa is measured in the shear test. Determine the...
How does budgeting help managers? Budgeting helps managers determine if their goals are ethical and achievable. Budgeting helps managers determine if their goals are reasonable and achievable....
If the 230-lb block is released from rest when the spring is unstretched, determine the velocity of the block after it has descended 5ft . The drum has a weight of 70lb and a radius of gyration of...
A B C D E F 1 Frequency : Monthly 2 Loan Amount: 150000.00 3 Interest Rate: 7.25% 4 Term(years): 30.00 5 No. of payments in a year: 12 time(s) 6 Periodic Rate: 0.60% =C3/C5 7 Total number of payment:...
Role of the Accountant in Various Organizations The following positions in various entities require a knowledge of accounting practices: 1. Chief financial officer for the subsidiary of a large...
PC Contractors, Inc., was an excavating business in Kansas City, Missouri. Union Bank made loans to PC, subject to a perfected security interest in its equipment and other assets, including...
How many 160- resistors (in parallel) are required to carry a total of 5.0 A on a 100-V line?
Two frictionless balls strike each other as shown. The coefficient of restitution between the balls is e. Draw the impulse-momentum diagrams that could be used to find the velocities of A and B after...
A 10-kg ball A moving horizontally at 12 m/s strikes a 10-kg block B. The coefficient of restitution of the impact is 0.4 and the coefficient of kinetic friction between the block and the inclined...
A 30-g bullet is fired with a horizontal velocity of 450 m/s and becomes embedded in block B which has a mass of 3 kg. After the impact, block B slides on 30-kg carrier C until it impacts the end of...
Q2R. on account for each depreciable asset. During 2024, Jane VIIS nsactions.) i More Info Apr. 1 Purchased office equipment. 5111,000. Paid 581,000 cash and financed the remainder Jan. 1 with a note...
The rate of return on Cherry Jalopies, Inc., stock over the last five years was 14 percent, 11 percent, 4 percent, 3 percent, and 7 percent. What is the geometric return for Cherry Jalopies, Inc.?
U.S. GAAP specifies all of the following characteristics of variable interest entities except: A. Equity holders hold less than 5% of the entitys voting stock. B. Equity holders do not have voting...

A worker is raising a 9.2-m-long ladder of mass 53 kg as shown. Knowing that the force

Question:

1.75 m

Step by Step Answer:

FreeBody Diagram 175m Therefore 9 This implies te BD JIN BD ...View the full answer

Vector Mechanics for Engineers Statics and Dynamics

Related Video

Students also viewed these Mechanical Engineering questions