The aircraft-hangar door opens and closes slowly by means of a motor which draws in the cable
Question:
The aircraft-hangar door opens and closes slowly by means of a motor which draws in the cable AB. If the door is made in two sections (bi-fold) and each section has a uniform weight W and length L, determine the force in the cable as a function of the door's position θ. The sections are pin-connected at C and D and the bottom is attached to a roller that travels along the vertical track.
Dy Dx L/2 L/2 612 587L 2 L NA /2
Step by Step Answer:
Mp0 EM 0 25 cos 2...View the full answer
Related Video
In Physics, a force is an influence that can change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity. In this video, the concept of force and torque is demonstrated with the practical application of changing the flat tire of the car.
Students also viewed these Civil Engineering questions
-
Two identical uniform rods each of weight W and length L are attached to pulleys that are connected by a belt as shown. Assuming that no slipping occurs between the belt and the pulleys, determine...
-
The trolley rolls at C and D along the bottom and top flange of beam AB. Determine the absolute maximum moment developed in the beam if the load supported by the trolley is 2 k. Assume the support at...
-
The 200-lb uniform tank is suspended by means of a 6-ft-long cable, which is attached to the sides of the tank and passes over the small pulley located at O. If the cable can be attached at either...
-
(a) Find the acceleration at time t = 5 min of a helicopter whose height is s(t) = 300t 4t 3 m. (b) Plot the acceleration s" for 0 t 6. How does this graph show that the helicopter is slowing down...
-
The equation (deterministic) for a straight line is y = 0 + 1x If the line passes through the point 1 -2, 42, then x = -2, y = 4 must satisfy the equation; that is, 4 = 0 + 1(-2) Similarly, if the...
-
A 1500-kg race car can go from 0 to 90 km/h in 5.0 s. What average power is required to do this?
-
What and who are the myths and heroes of Zappos? What are some of its taboos and sacred symbols? What does happiness have to do with selling shoes and other items online?
-
Mulberry Sporting Goods is authorized to issue 18,000 shares of common stock . During a two-month period, Mulberry completed these stock-issuance transactions: Apr 23 Issued 4,000 shares of $1.00 par...
-
Pls help me solve this without Excel. I got this incorrect. A new IT server for a company will cost $448,864.00 today. The company expects the server will create an incremental cash flow to the firm...
-
students should: 1. Identify the various elements needed to conduct CVP analyses, 2. Describe the cost structure of a service company, 3. Apply CVP analysis in a multiproduct situation and for a...
-
Determine the force created in the hydraulic cylinders EF and AD in order to hold the shovel in equilibrium. The shovel load has a mass W and a center of gravity at G. All joints are pin connected....
-
A man having weight W attempts to lift himself using one of the two methods shown, determine the total force he must exert on bar AB in each case and the normal reaction he exerts on the platform at...
-
On January 1, 2013, Field Company acquired 40% of North Company by purchasing 8,000 shares for $144,000 and obtained significant influence. On the date of acquisition, Field calculated that its share...
-
Listed in the accompanying table are waiting times (seconds) of observed cars at a Delaware inspection station. The data from two waiting lines are real observations, and the data from the sir line...
-
Franklin Prepared Foods (FPF) sells three varieties of microwaveable meals with the following prices and costs: Variable Cost Fixed Cost per Meat Fish Vegetarian Entire firm Selling Price per Case: $...
-
Isabella is a 14-year-old Hispanic bisexual female who has come into the Department of Child Safety (DCS) care due to neglect. Isabella's mother, Martina, is 35 years old, a single mother, has an...
-
Jeff is able to ride a bicycle although he hasn't ridden one for a few years, thanks to his: ( A ) procedural memory ( B ) episodic memory C ) semantic memory ( D ) cognitive memory
-
1. Allen Young has always been proud of his personal investment strategies and has done very well over the past several years. He invests primarily in the stock market. Over the past several months,...
-
You drop 500 g of solid ice at -35C into a bucket of water (1200 g) at 45C. Eventually, the ice all melts, and the entire system comes into thermal equilibrium. Find the final temperature of the...
-
Give codons for the following amino acids: (a) Th (b) Asp (c) Thr
-
What is producer surplus? How is it illustrated on a demand and supply diagram?
-
Draw the shear and moment diagrams for the beam. The support at A offers no resistance to vertical load. Wo
-
Draw the shear and moment diagrams for the simplysupported beam. 2wo Wo A B L/2- L/2 -L/2-
-
Draw the shear and moment diagrams for the beam. The supports at A and B are a thrust bearing and journal bearing, respectively 600 N 300 N 1200 N/m B F0.5 m -1 m 0.5m 0.5 m-
-
Deacon Company is a merchandising company that is preparing a budget for the three - month period ended June 3 0 th . The following information is available Deacon Company Balance Sheet March 3 1...
-
Mango Company applies overhead based on direct labor costs. For the current year, Mango Company estimated total overhead costs to be $460,000, and direct labor costs to be $230,000. Actual overhead...
-
Which of the following do we expect to be the horizon growth rate for a company (long term growth rate- say 30-50 years)? A) Inflation B) Industry Average C) Zero D) Market Beta
Study smarter with the SolutionInn App