The designers of lamp mechanisms, such as that shown in the figure, usually rely on joint friction to aid in maintaining static equilibrium. For the present problem, assume that sufficient friction exists at point C to prevent rotation there, but ignore friction at all other joints. If the mass of the lamp fixture is 0.65 kg with mass center at G, determine the spring force F, necessary for equilibrium in the position shown. wwwwww 180 mm E 54 54 mm mm B 61 mm 15° C D 180 mm

The designers of lamp mechanisms, such as that shown in the figure, usually rely on joint friction to aid in maintaining static equilibrium. For the present problem, assume that sufficient friction exists at point C to prevent rotation there, but ignore friction at all other joints. If the mass of the lamp fixture is 0.65 kg with mass center at G, determine the spring force F, necessary for equilibrium in the position shown. wwwwww 180 mm E 54 54 mm mm B 61 mm 15° C D 180 mm

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

Similar questions

Determine the tension in the cable and the horizontal and vertical components of reaction of the pin A. The pulley at D is frictionless and the cylinder weighs 83 lb.( Egure 1) Figure 38 101 Part A Determine the tension in the cable. Express your answer to three significant figures and include the appropriate units. Submit Part B Value Request Answer Determine the horizontal and vertical components of reaction of the pin A. Assume that the positive and yaxes are directed to the sight and upward, respectively A.. A₁- Submit Express your answers using three significant figures separated by a comma. Assume that the positive and y axes are directed to the right and upward, respectively VAXI vec Units Request Answer ? lb
Fig. 1 shows a simple six bar linkage held in static equilibrium while a torque Tin = 250 N mm is applied. Determine the reaction forces at each joint and the holding force P by considering the free-body diagrams of each member. Each small square on the grid is 50 mm by 50 mm. H E Figure 1 Simple Six Bar Linkage B Tin
The uniform bar and the homogeneous cylinder each have a mass of 24 kg. The static coefficient of friction is μs at A, B, and C (the three points of contact). (a) Assuming equilibrium, calculate the normal and friction forces at A,B and C. (b) What is the smallest value of μs necessary for wquilibrium?
A sliding block weighing 50 lb can slide freely within the frictionless slot shown. The spring is undeformed (i.e., not stretched) when it is in a horizontal position. What is the spring constant k if the slider is in equilibrium in the position shown? Show your calculations and result.
A rope holding a 50 lb weight F passes over a pulley and is attached to a frame at A as is shown in Fig 9-34. The weight of C is 60 lb. What is the minimum coefficient of friction between the outer rope and the pulley for equilibrium? Give solutions. (Ans. coefficient of friction = 0.291)
The figure below shows a cylinder, which is rotating in clockwise direction. A lever is pushing onto the cylinder, thus exerting a braking torque. The lever itself is loaded by a force FE . a) Draw the free-body diagram of the lever, determine the direction of the kinetic friction force.
pls answer fast thank you A system of blocks is shown in the figure. Assume the pulley is frictionless *show FBD 1. Which of the following most nearly gives the least value of P required to prevent the system of blocks from sliding to the left? 2. Which of the following most nearly gives the least value of P required to cause the system of blocks to have impending motion to the right? 3. Which of the following most nearly gives the reaction at the pulley if the system of blocks is to have an impending motion to the right?
For Probs. 1-3, (a) draw the free-body diagrams for the entire assembly (or structure) and each of its parts. Neglect friction and the weights of the members unless specified otherwise. Be sure to indicate all relevant dimensions. For each problem, (b) determine the total number of unknown forces and the total number of independent equilibrium equations. Problem 1 500 N 500 N 1 m 500 N (b) (c) Figure 1 Problem 2 -- Ift 4 ft -1.8 ft 100 lb F1.8 ft - 100 lb 100 lb (а) (b) (c)
Q.3) The coefficient of friction between the 120 lb block (shown in figure below) and the incline plane is 0.3 and that between the cord and cylindrical support is 0.4. Determine the range of cylinder weight W for which the system shown below will be in equilibrium. μ = 0.3 120 lb 24° <μ = 0.4 5 W
Given the figure shown below, what is the mass of block B on the smooth incline if the system is in static equilibrium? A rope runs from block B up around the frictionless pulley at A down to a 10 kg counterweight. A 1 m B- 1m 10 kg 45°
Learning Goal: To use the equations of equilibrium to analyze a system containing a wedge and to determine the necessary applied force to introduce motion into the system. The crate shown is held against wedge B by a spring. The spring is 94.0% of its original uncompressed length 1 = 3.00 m, and the spring constant is given as k = 1650 N/m. The coefficient of static friction at all contacting surfaces is μs = 0.100. The mass of the crate is m = 25.0 kg . The angle is 0 = 14.0°. Neglect the mass of the wedge. Assume the crate only moves in the y direction and that wedge A cannot move. (Figure 1) Figure B < 1 of 1 y L. Part A - Determining the normal force exerted by the crate on the wedge Determine the normal force No that the crate exerts on the wedge when the system is at rest. Express your answer to three significant figures and include the appropriate units. ► View Available Hint(s) Nc= Submit P = Value Part B - Finding the smallest horizontal force P to move the crate upward Submit…
MEC101 Midterm Exanms- B06 One of the smooth vertical walls supporting end B of the 145-kg uniform shaft is turned through a 27° angle as shown here. End A is supported by the ball-and-socket connection in the horizontal x-y plane. Calculate the magnitudes of the forces P and Rexerted on the ball end B of the shaft by the vertical walls C and D, respectively. Assume a = 6.4 m, b = 1.9 m, L = 7.3 m, and 0=0%3D 27°. B 26°C