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- What Is Static Equilibrium? Problems 13 are grouped. 1. C A ball is attached to a strong, lightweight rod (Fig. P14.1). The rod is supported by a horizontal pin near the top. The ball is at rest. Is the ball in static equilibrium? If not, why not? If so, which type of equilibrium is itstable, unstable, or neutral? Hint: What would happen if you displaced the ball slightly? FIGURE P14.1The homogeneous wire ABCD is bent as shown and is attache to a hinge at C. Determine the length L that results in portic BCD of the wire being horizontal. - 200 mm -L- В D 150 mmThe homogeneous wire ABCD is bent as shown and is attached to a hinge at C. Determine the length L that results in portion BCD of the wire being horizontal. 200 mm -L- В D IC 150 mm A
- The spool in the given figure weighs 25 N, and its center of gravity is located at the geometric center. The weight of block C is 50 N. The coefficients of static friction at the two points of contact are as shown. Determine the largest horizontal force P that can be applied without disturbing the equilibrium of the system. #s=0.3- #s=0.4 O D C A B 08 120 Dimensions in mm PCalculate the force in member BG using a freebody diagram of the rigid member ABC. The force is positive if in tension, negative if in compression. E 11¹ F 11' G KEA 15' 11' 11' B Answer: BG= i lb 530 lbA fishing boat had a fishing net with a 3.9 m2 cross-sectional area, but the net broke due to structural issues when the fishermen improperly used the net at a relative angle of 90o (i.e., the net's surface is perfectly perpendicular to the motion of the boat). They read in the boat's manual that the surface of the net should instead be supported at 65o relative to the motion of the boat. How large must the cross-section of of a replacement net would they need without impacting their fishing? Give your answer in units of m2.
- 12:10 4G Not Secure - yslphysics.weebly.com the rod. odulus for metal = 1.0 x 10!l N m²² ) 30 of 32 Answer: 3.2×10-4 J EXERCISE 2 A hollow cylinder has length 50.0 cm, internal diameter 5.0 cm and external diameter 6.0 cm. A force of magnitude 1.0 kN acts at each end of cylinder so that the cylinder is being compressed. Determine the compression of cylinder. ( Young's modulus for the material of the Cylinder = 7.0x101º Nm-² ) Answer: 8.3×10-6 m EXERCISE 3 A wire of length 0.50 m is fixed horizontally between two supports separated by 0.50 m. When a mass of 8.0 kg hangs from the middle of the wire, the mid-point sags by 1.00 cm. The diameter of the wire is 2.8 mm. Calculate the Young's modulus of the wire. (Given g = 9.81 m s-2) Answer: 1.99 × 10* PuW=50M 2. Determine the value of Pand x to balance the given system of Forces 4F =200 N 4 m F= SON4. A 40N floodlight in a park is supported at the end of a horizontal beam of negligible mass that is hinged to a pole. A cable at an angle of 40° with the beam helps to support the light. Find the tension and the horizontal & vertical forces exerted on the beam by the pole? 40° X
- If the beam attached to a hinge is 4 meters long and weighs 600 Newtons, and the sign weighs 400 Newtons, find the tension of the 5-meter string shown below in SI units; 5.0 m 3.0 m 4.0 m 3 - The Eq..pdf O 3B_2.png 3B_1.png O3A 3.png 3A_2.png 33°C Light rain ^ OPPO A94 GStiller Düzenleme 2) A uniform brass plate with area of 18 x 18 m? has mass of 41 kg which is hold by three Üst B cables in the horizontal position as shown. Please calculate the tension in each cable. 6 m. 9 m. 12 m. 9 m. ANSWERS TA (N) (10 pts) Te (N) (5 pts) Tc (N) (5 pts) F8 F9 F10 F11 F12 PIntS Insert 8.Determine the elongation of the bar shown in the figure if it is under a tension of 5.89 kN.