Determine whether the block shown is in equilibrium and find the magnitude and direction of the friction force when 0 = 35° and P = 200 N. P. 800 N Hs= 0.20 Hk=0.15 25
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- Calculate the minimum force P required to keep the 0.294 KN rod AB from sliding. The contact surface at B is smooth, while the static friction coefficient between the rod and the wall at A is ms = 0.2 Answer = . _N A O 180 165 O 150 3 m O 175 O 160 O 155 В 170 185 - 4 m·THE COEFFICIENT OF STATIC FRICTION BETWEEN THE BLOCK AND THE PLANE IS µs = 0.2. DETERMINE THE MAXIMUM VALUE OF WEIGHT W WITHOUT CAUSING THE 50-LB BLOCK TO SLIP. D W 45° Answer:CLO 1: Determine the maximum tensile stress in MPa if P = 115 %3D kN. 20 mm 25 mm 20 mm 45mm 3somm 16.064 28.395 45.176 10.040 46 mm
- Determine whether the block shown is in equilibrium and find the magnitude and direction of the friction force when P = 100lb. 50 lb Hj = 0.40 Hk = 0.30 %3D 40° 30° O Block is in Equilibrium, F=43.032 lb, 30 deg. with the Horizontal Axis O Block is in Equilibrium, F=32.274 lb, 40 deg. with the Horizontal Axis O Block is not in Equilibrium, F=32.274 lb, 30 deg. with the Horizontal Axis O Block is in Equilibrium, F=32.274 lb, 30 deg. with the Horizontal Axis O Block is not in Equilibrium, F=43.032 lb, 30 deg. with the Horizontal AxisDetermine whether the block shown is in equilibrium and fınd the magnitude and direction of the friction force when P = 60lb. 50 lb H, = 0.40 Hi = 0.30 P 40° 30° Block is in Equilibrium, F=20.960 Ib, 30 deg. with the Horizontal Axis Block is not in Equilibrium, F=20.960 lb, 40 deg. with the Horizontal Axis Block is not in Equilibrium, F=32.748 Ib, 30 deg. with the Horizontal Axis Block is not in Equilibrium, F=20.960 Ib, 30 deg. with the Horizontal Axis O Block is in Equilibrium, F=32.748 Ib, 30 deg. with the Horizontal AxisThe beam shown is hinged at one end. It is supported by two steel rods of equal length of 1.5m. Before the load is applied, the beam hangs level. Use E 200, 000MPa and a = 11.7- m C" Neglect bending of the beam. A=640mm2 A=320mm2 A C D 1.2m 0.8 m 1.2 m 54KN What is the stress of rod B if there is no change in temperature in MPa?
- 2:37 6.00 KB/S A 2M 3M B Problem 2: A rigid block of negligible mass is supported by three symmetrically spaced rods as shown. Each copper rod has an area of 900mm2 and E=120GPA, and the allowable stress is 70MPa. The steel rod has an area of 1200mm2, E=200GPA and the allowable stress is 140MPA. Determine the largest load P which can be supported. Your answer Figure for Problem 2 STEEL 24OMM COPPER COPPER 16OMM 16OMM --Situation 1: The 300-1b force is to be resolved into components along lines a-a' and b-b'. P 300 lb b 60⁰ a' 1. Determine the angle a knowing that the component along line a-a' is 240-lb. 2. What is the corresponding value of the component along b-b'?0.1m 0.3m 0:1m Question (C) A beam with the cross section shown in the figure is subjected to a shear force V 100 kN and a bending moment M-150 kN.m. a) Areamoment of inertia about the neutral axis mm r- b) The maximum bending stress= MPa [ c) The shear stress at the neutral axis = MPа 100 mm 100 mm 120 mm 120 mm 120mm M.
- Determine the minimum diameter of a solid bar which is required to transmit a torque of 40 kNm if the yield stress of the material of the bar is 120 N/mm?. Ans. 119.2 mm.A brass disk of radius 0.7 ftft and weight 459 lblb sits in a right-angle groove made of granite. The disk makes contact with the groove at AA and BB and the coefficient of static friction at both points are μS=μS= 0.39 A couple moment of MM is applied to the disk as shown.Problem #1: All the vertical bars are constructed from steel (E = 29,000 ksi and a = 6.5 x 10 1/°F). The mechanical loading is shown and in addition the entire system undergoes a uniform temperature change of AT = 25 °F, determine the vertical displacement at point B (red circle). Note the cross- sectional area for all the vertical bars is 0.0750 in? and assume the horizontal beams are rigid. Report your answer in inches to four decimal places. E F 4 ft H. D C -2 ft- 5 ft 4.5 ft 800 lb A B 1 ft