3) Determine the force P for impending sliding motion of block A P 30° IMPENDING MOTION NAB 50lb ALUMINUM A 100lb ALUMINUM MILD STEEL mg →→ M = 1.05 μ = 0.61
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Determine the force P for impeding sliding motion of block A
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- In-1' 16+29 CHAPTER ENGINEERS MECHANICS STATICS り」 arc ( 24 X(x Sample Problem 6.4.2 JQ) aX9 142 i JA V4 TuS 31 An 800 N-m couple is applied to the flywheel as shown. The coefficient of belt friction is 0.20. The minimum force P required to prevent rotation of the flywheel is applied. 800 N.m dre 2.R 1. Which Tension is larger, TA or TB? Explain 2. What is the angle of contact in radians? 60 3. What is the value of the ratio TA/TB? A B X*ッー Sin=d 6+ミ 2(I+(T Tarc (2) 4)e Eら、1.2 J =3.also find ax and ay The rod is supported by smooth journal bearings at A.B. and C and is subjected to the two forces Fi= 400 N and F 520 N (Egure 1) Figure 0.6m 0.6m 0.6m 0.4m 1 of 1 Part A Determine the 2 and y components of reaction at Cusing scalar notation Express your answers in newtons to three significant figures separated by a comma View Available Hint(s) [95] ΑΣΦ. 11 | vec C.C. Submit Part B ? B. B N Determine the az and a components of reaction at B using scalar notation Express your answers in newtons to three significant figures separated by a comma View Available Hint(s) ΑΣΦ | 19 | voc) NThe linkage shown is used in a vehicle suspension system. Find the forces indicated below when a static force of F = 820 lb is applied to the tire at point C at an angle of 0 = 22° as shown. Assume the connection of the wheel to member AB is rigid. hs hy hi F BY NC SA W4. W, Ws 2013 Michael Swanbom Values for dimensions on the figure are given in the following table. Note the figure may not be to scale. Variable Value Variable Value hi 10 in Wi 8.8 in h2 15.6 in W2 5.6 in h3 18.1 in W3 10.8 in h4 10.9 in WĄ 7.4 in h5 4.9 in W5 9.3 in For all answers, take x as positive to the right and y as positive upward. At point B, member AB exerts a force of B = j lbs on member BHE. At point A, member AD exerts a force of A + j lbs on member AB. At point H, shock GH exerts a force of H = i + i lbs on member ВНЕ. At point E, the magnitude of the force exerted on the car body by member BHE is lbs. At point D, the magnitude of the force exerted on the car body by member AD is lbs. At point G, the…
- 400 lb A to Ac B 1 of 1 Part A Determine the design angle 0 (0° ≤0 ≤ 90°) for strut AB so that the 400 lb horizontal force has a component of 505 lb directed from A towards C. Take = 39 °. (Figure 1) Express your answer with the appropriate units. 0 = Di Part B Submit Value HA Submit Provide Feedback ^ Request Answer FAB = Value What is the component of force acting along member AB? Express your answer with the appropriate units. μA BE Request Answer Units B ? Units ? Next >touch &O O166% 00:27 MENG250 - Practice Assign... Problem 2-15 Determine the design angle ø (0° < ø< 90°) between struts AB and AC so that the 400-lb horizontal force has a component of 500 lb directed from A towards C. What is the component of force acting along member AB? Take 0 = 40°. 400 lb A te BThe picture shows the launch state of a missile sliding along the guide rail under the action of thrust P. It is known that the thrust P=450800N, the weight of the missile is G=20000N, the front leg A is a slider, the sliding friction coefficient is considered, and the rear leg B is a roller, ignoring the rolling friction. The launch angle is θ, try to use the above three expressions to calculate the load factor
- In the graph the force versus displacement of a spring is given (the spring is shown in a separate figure--see below). The x-axis range is ±2 cm. The y-axis range is tFs, where Fs = 220 N. How much work does the spring do on the block (the mass "m") when the block moves from x₁ = 7.6 cm to 4.3 cm? W J y F. X -1.5 -0.5 0 10.5 1 1.5 -F How much work does the spring do on the block (the mass "m") when the block moves from x; = 7.6 cm to -7.6 cm? W = Question Help: Read Submit Question mQ5/ In vehicle suspension design it is desirable to minimize the mass of all components. You have been asked to select a material and dimensions for a light spring to replace the steel leaf-spring of an existing truck suspension. The existing leaf-spring is a beam, shown schematically in the figure. The new spring must have the same length L and stiffness S as the existing one, and must deflect through a maximum safe displacement 8max without failure. The width b and thickness t are free variables. L Load F 6= 1 FL³ 48 EI 10₂L² 6 #E 1=bt³/12 8max = Derive a material index for the selection of a material for this application. Note that this is a problem with two free variables: b and t; and there are two constraints, one on safe deflection 8max and the other on stiffness S. Use the two constraints to fix free variables.The towing pendant AB is subjected to the force of T = 45 kN exerted by a tugboat. The ship is moving forward with constant velocity. (Figure 1) Figure 20° -30° B 1 of 1 Part A Determine the force in the bridle BC. Express your answer to three significant figures and include the appropriate units. TBC = Submit Part B TBD = Submit LO Provide Feedback ■ μA Value Request Answer Determine the force in the bridle BD. Express your answer to three significant figures and include the appropriate units. μA Value Units Request Answer ? Units ?
- For the same question, the M25 Screw will be used when pressing the Nut Wheel onto the shaft. Assuming that the force that the nut needs to suppress is Fçak=1218 kgf (it was found in the previous question, but we don't use it), what should the minimum NUT HEIGHT be in mm to create this force safely? (Screw and Nut's surface safety pressure Pem=45 N/mm2 Screw base diameter d1= 21.5 mm. (Calculate the pitch (h=?) according to the given ones, considering that metric screw is used!)Calculate the reaction forces on the bearing near the pulley and bearing at the far end of the shaft. Include a free body diagram and coordinates. Given the shaft length is 1 meter= Mass=40Kg Static load = 8600N Dynamic (running load) = 8400N Some hints:1. This solution will require you to draw known forces and find unknown reactions in 2perpendicular planes and then add the horizontal and vertical reaction forces asvectors to find the reaction force (hypotenuse).2. Bearings are usually mounted as near as possible to the ends of the shaft withoutfouling the other machine elements. The bearing at the far shaft end can be mountedat the 1 meter point. The bearing at the pulley end should allow clearance to assemblethe pulley.3. Bearing reaction forces are typically simplified as a single point load through thebearing centre.QUESTION 8 The y-components results of the force vectors that has been shown in Figure. F2 = 80 N 20 %3D F = 150 N %3D 30° 15° F = 100 N A F3 = 110 N %3D Fly=75 N, F2y=-75.2 N, F3y=-110 OA. "N, F4y=-25.9 N Fly=75 N, F2y=75.2 N, F3y=110 N, OB. 'F4y=-25.9 N Fly=75 N, F2y-75.2 N, F3y=-110 'N, F4y-25.9 N Fly=-75 N, F2y-75.2 N, F3y=-110 'N, F4y=-25.9 Ñ OC. OD.