Question: A non-uniform fire escape ladder is 6.0 m long when extended to the icy alley below. It is held at the top by a frictionless

A non-uniform fire escape ladder is 6.0 m long when extended to the icy alley below. It is held at the top by a frictionless pivnt, and there is negligible frictional force from the icy surface at the bottom. The ladder weighs 250 N, and its center of gravity is 2.0 m along the ladder from its bottom. A mother and child of total weight 750 N are on the ladder 1.5 m from the pivot. The ladder makes an angle 6 with the horizontal. Find the magnitude and direction of
(a) The force exerted by the icy alley on the ladder and
(b) The force exerted by the ladder on the pivot.
(c) Do your answers in parts (a) and (b) depend on the angle 6?

Step by Step Solution

★★★★★

3.44 Rating (163 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

IDENTIFY Apply the first and second conditions of equilibrium to the ladder S... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

P-M-EE (54).docx

120 KBs Word File

Students Have Also Explored These Related Mechanics Questions!

Does every correspondence between bases, when extended to the spaces, give an isomorphism? That is, suppose that V is a vector space with basis B = (1, . . . , n) and that f: B W is a correspondence...

A uniform ladder is 10 m long and weighs 200 N. In Figure the ladder leans against a vertical, frictionless wall at height h = 8.0 m above the ground. A horizontal force F is applied to the ladder at...

A uniform ladder of mass m and length l leans at an angle θ against a frictionless wall, Fig. 9-60. If the coefficient of static friction between the ladder and the ground is μ, determine a...

QUESTION ONE [20] ZingZang Limited has operated the "Magical Moments" theatre company for the last 30 years, during which time the" Magical Moments" brand grew to be quite valuable. The theatre...

In the story "To Build a Fire" by Richard Cory what are two characteristics of naturalism or realism that are present in the story? How is each characteristics presented in the story? To Build a Fire...

Name and summarize the key points from this txt Christopher Martin's new book, No Longer Newsworthy, is a major accomplishment for three reasons: its insightful take on combustible representations of...

Two major themes from the introduction to module 4 are "Project Management" and "Managing Risk." Discuss, in depth, your analysis of the company's actions in relation to the concepts of these two...

please read the following pages - Identify the ethical issue(s); - Identify and analyze the stakeholders; - Identify and analyze the different courses of action to address the ethical issues(s) using...

question for the objectives: 1.Define dangerous and non-dangerous contraband. 2. Identify ten types of authorized property. 3.Explain when an offender-to-offender property transaction is authorized....

Module 2 Assignment: Sunk Cost Read two articles assigned (A1 and A2). Answer all the questions below and submit your answer report to Module 2 Assignment in Dropbox by the deadline . The report...

A stream of nitrogen gas containing 9.5 % benzene by volume is to be scrubbed in a packed tower with an absorption oil in order to reduce the benzene content to 0.5 % by volume before the gas can be...

1. A 25-W light bulb is connected in series with a 100-W light bulb and a voltage V is placed across the combination. Which bulb is brighter? Explain. 2. Do Kirchhoff's rules apply to circuits...

Find f ( t ) . 1 e 3 ss 3 f ( t ) = + t

Discussion on Hard Rock Caf service design and sustainability. Answer must be checlked in turnitin to avoid any plagiarism

Cool Sphere produces many types of fans, both for commercial and residential use. A model that has proven to be quite popular is the Retractafan. This is a fan with retractable blades and has a LED...

[9 points] Consider the following program written in a language whose syntax similar to C and functions can be passed as arguments. The program starts with the main function. int a = 1; void f1(int...

How is the beta of a portfolio related to the betas of the individual investments in the portfolio?

Number 12.33. 12.34Please help me 1233. A small sphere of mass m and radius r slides down a smooth stationary large sphere of radius R under the action of gravity from a position of rest at the top....

BE6.13 (LO 5) Arness Woodcrafters sells $250,000 of receivables to Commercial Factors, Inc. on a without guarantee basis. Commercial assesses a finance charge of 5% and retains an amount equal to 4%...

A population consists of the following five values: 10, 10, 38, 37, 13. b. By listing all samples of size 3, compute the mean of the distribution of the sample mean and the population mean. Compare...

A Mesophilic bacterium A utilizes glucose to produce an intracellular protein B and an extracellular byproduct C. The aerobic bacterium is metabolically active in the pH range of 6.9 7.2. A...

Consider a no-load mutual fund with $247 million in assets, 15 million shares and $36 million in debt at the start of the year. It invests in a portfolio that provides no income but increases price...