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- tV wii The following forces are acting on the bracket below. The bracket has a width w of 2 inches and a height h of 3 inches. The bracket is in equilibrium (not accelerating). Determine F3, knowing F1x-74 lbf and F1y-133 Ibf. This problem has different numbers than the first problem! For this question, what is F3.x in Ibf? 39 h6Problem-solving questions At the back of the leg, two muscles pull on the Achilles tendon to create an upward force. Estimate the nett force if cach muscle has a diameter of about 5.0 mm and exerts a force in a direction of 25° from the vertical. (Use a force per unit area of muscle of 7x10° N/m²). An 18 kg penguin slides down an iceberg at an angle of 15° to the horizontal. Friction between the penguin's body and the ice surface is negligible. Determine the normal force acting on the penguin and its acceleration down the iceberg. A manufacturer of children's slides does some tests and discovers that the slope of a slippery slide must be at least 25° to the horizontal for the slide to work. The child involved in doing the testing weighs 35 kg. What is the coefficient of static friction between the child and the slide? A car drives onto a section of the road which is covered in ice. The driver attempts to stop by hitting the brakes but the wheels lock and the car skids for another 60 m.…
- The two planks are connected together by cable BC and a smooth spacer DE. Determine the reactions at the smooth supports A and F.and also find the force developed in the cable and spacer. Match the answers. 100 lb 200 lb -2 ft--2 ft- ft2 ft- 182 160 180 1. reaction at A= 168 2. reaction at F = 176 3. Foc- 128 4. FDE 5. 150 120 140A.20 m long spring is attached to the wall. When pulled horizontally with a force of 100 N, the spring stretches to a length of .30 m. -.20 m .30 m 100 N a) Calculate the value of the spring constant.The load F at point B is supported by a fixed support at point A. Determine the reaction at support A in Y-direction. (F = 3.0 KN) F. в Meriam ,2006 Select one: a. 1.0 KN b. 2.0 KN С. О d. 3.0 KN The correct answer is: 3.0 KN
- 73 14 F The horizontal force F pulls a heavy suspended mass to the side. al force p DO In static equilibrium, the angle is constant. If m = 74.70 kg, and the angle = 33.60 degrees, then what is F? (in N) OA: 303.99 B: 355.67 OC: 416.13 OD: 486.88 OE: 569.64 OF: 666.48 OG: 779.79 OH: 912.35What is the moment of friction force f(B) at Babout point A? O A) the moment of friction force f(B) at Babout point A is 220 Ib.ft B) the moment of friction force f(B) at Babout point A is zero O C) the moment of friction force f(B) at Babout point A is 320 Ib.ft D) the moment of friction force f(B) at B about point A is 120 Ib.ft O E) the moment of friction force f(B) at Babout point A is 420 Ib.ft