Question: A crowbar 1.5 m long is supported underneath 1.2 m from the end by a rock, with the other end under a boulder. If the

A crowbar 1.5 m long is supported underneath 1.2 m from the end by a rock, with the other end under a boulder. If the crowbar is at an angle of 18° with the horizontal and a person pushes down, perpendicular to the crowbar, with a force of 240 N, what vertical force is applied to the boulder? See Fig. 9.46 (The forces are related by 1.2F₁ = 0.3F₂.)

Fig. 9.46 L F = 240 N 18 -1.5m F

Step by Step Solution

★★★★★

3.44 Rating (157 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

F1 is the force ... 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

Students Have Also Explored These Related Basic Technical Mathematics Questions!

A person pushes a 14.0-kg lawn mower at constant speed with a force of F = 88.0 N directed along the handle, which is at an angle of 45.0o to the horizontal (Fig.4-45). (a) Draw the free-body diagram...

A sign is supported by a uniform horizontal boom of length 3.00 m and weight 80.0 N. A cable, inclined at an angle of 35° with the boom, is attached at a distance of 2.38 m from the hinge at the...

The following additional information is available for the Dr. Ivan and Irene Incisor family from Chapters 1-5. Ivan's grandfather died and left a portfolio of municipal bonds. In 2012, they pay Ivan...

Instructions - Answer all the questions all calculations must be clearly indicated No essays - write factual and structured Maximum 10 pages You are not allowed to do any updates on the Case...

Produce a work breakdown structure for the minor dwelling project plan ( the image files provided) using ms word or another software. The work breakdown structure should have 4 hierarchy levels with...

Please help! 3.4 Projectile Motion 27 .A ball is thrown horizontally from the top of a 60.0-m building and lands 100.0 m from the base of the building. Ignore air resistance. (a) How long is the ball...

Case Study "Polaris & Victory: Entering & Growing the Motorcycle Business" Steve Menneto, vice president in charge of the Motorcycle Division at Polaris Industries, gazed up at company headquarters...

1. Summarize the case; what is happening and why is this important? 2. How does this case relate to at least three strategies (connect the dots, there are overlaps, in most of the topics (e.g....

Conceptual ROM Cost Estimating Prepare a conceptual cost estimate (use R.S. Means Cost data 2019) for the following projects (Include design & construction costs): a. 30,000 SF Medium-quality,...

0.5m A rigid bar supported by two vertical bars is shown in figure. The aluminium and steel bars has area 600 mm and 800 mm respectively. Young's modulus of aluminium rod and steel is 70 GPa and 200...

What are some of the advantages of using project management software?

order to find out how much cash is available to pay down short term debt, such as a revolving credit line, you must take: Cash inflows from operations + Cash outflows for investments + Financing cash...

An article in the Electronic Journal of Biotechnology (Optimization of Medium Composition for Transglutaminase Production by a Brazilian Soil Streptomyces sp, available at The correct URL is...

The efficiency of the engines of subsonic airplanes depends on air pressure and is usually maximum near 35,000 ft. Find the air pressure y(x) at this height. Physical information. The rate of change...

These properties are of practical and theoretical importance because they enable us to obtain new solutions from given ones. Thus in modeling, whenever possible, we prefer linear ODEs over nonlinear...

Solve the IVP. Indicate the method used. Show the details of your work. y' + 4xy = e -2x 2 , y(0) = -4.3

I am trying to figure out if a Section 351 acquisition structure is necessary for the following: Baja, Inc. is owned by Smith and Calegari. Smith owns 30% of Baja's common stock and has a basis in...

Kazaam Company, a merchandiser, recently completed its calendar-year 2011 operations. For the year, (1) all sales are credit sales, (2) all credits to Accounts Receivable reflect cash receipts from...

En un sistema de informacin contable, los documentos fuente son los documentos que ________. A. detallar la planificacin estratgica del negocio B. ser auditados y presentados a la Comisin de Bolsa y...