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- A telescope with tripod weighs 25 pounds and has geometry as shown in the figure and parameter table. Its center of gravity is at G and the ground can be considered to be a smooth surface. What are the vertical support reactions at A, B, and Č G В A L2 -3 y parameter value units 4.25 ft L2 La L4 1.75 ft 2 ft 1.5 ft The normal reaction at A is lb The normal reaction at B is lb The normal reaction at C is lbThe steel plate shown below is put in into a rigid chamber, such that spacings of size s-000188 m. To fit the plate, it is heated. It can be assumed that the plate can move frictionless along its edges If x = 4 m and y- 2 m, E - 200 GPa V - 0.28 a = 11.7 x 10 ro When the upper surface of the plate is just about to close with the chamber due temperature increase along y-axis, how much is the stress on its side? Select the correct response 164.063 MPa 54.688 MPa 117.188 MPaL+I]2 ab)" a~bm 1 2. 6 STATICS ENGINEERS MECHANIOCS CHAPTER Lecture Notes: = m- %3D a Z = EXAMPLE: 22 ember Particle A lies on the x-y plane and is acted on by the three forces shown. Find the resultant of the three forces. 4.5 m +3 2.1m Pz 1400 N 900N 1.8m 1000 N 70.6m 1.8 m 1.2m ofT R+b? 14
- 13:17 X A telescope with tripod weighs 40 pounds and has geometry as shown in the figure and parameter table. Its center of gravity is at G and the ground can be considered to be a smooth surface. What are the vertical support reactions at A, B, and C? 4₁ cc 080 2021 Cathy Zupke A wamap.org parameter L₁ L2 L3 LA G 7 B The normal reaction at A is The normal reaction at B is The normal reaction at Cis value units 4.75 2 1 1 -4₂- CY ft ft ft ft =L3 4 lb lb lbQ10) Replace the parallel force system acting on the plate by a resultant force and specify its location on the x-z plane. 1 m 1 m 0.5 m 1 m 0.5 m 2 kN 3 kN 5 kNThis is a determinate structure, which must be statically stable and used in the analysis of MCD? a. Primary Structure b. Virtual System c. Real System d. Analytical mode
- The steel plate shown below is put in into a rigid chamber, such that spacings of size s 0.00188 m. To fit the plate, it is heated. It can be assumed that the plate can move frictionless along its edges. If x - 4 m and y = 2 m, E = 200 GPa V - 0.28 a = 11.7 x 10 rc When the upper surface of the plate is just about to close with the chamber due temperature increase along y-axis, how much is the stress on its side? Select the correct response:EXAMPLE 4.4 Both portions of the rod ABC are made of an aluminum for which E = 70 GPa. Knowing that the magnitude of P is 4 kN, determine (a) the value of Q so that the deflection at A is zero, (b) the cor- responding deflection of B. 20-mm diameter 0.4 m 0.5 m 60-mm diameter2 Poin Question 7 of 15 The steel plate shown below is put in into a rigid chamber, such that spacings of size s = 0.00188 m. To fit the plate, it is heated. It can be assumed that the plate can move frictionless along its edges. If x 4 m and y=2m, E = 200 GPa V = 0.28 a = 11.7 x 10 rc For which temperature increase along the y-axis is the upper spacing just closing in degree celsius? Select the correct response
- 2 By using Conjugate BeamMethod, Detemine the deflection at the free end of the beamshown 180 kN 15 kN/m B D 5 m- El = constant E = 70 GPa 1 = 2,340 (106) mm* -5 m- -4 m-Determine the angle of twist between A and C for the brass shaft loaded as shown in Fig. 9.6.3. Take G = 40 GPa and %3D diameter of shaft = 40 mm.?? 400 Nm 1200 Nm 800 Nm A •B C. 1 m 1.5 m Fig. 9.6.3Both wires have a cross sectional area of 17 mm? and are constructed of the same material with a modulus of elasticity of 200,000 MPa. 1. Determine the wires' tensile stress at C. 2. Determine the wires' tensile stress at D. 3. Calculate the maximum displacement possible. 900 mm 450 mm C D 500 mm 1250 mm P=1500 N 1650 mm