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- Solve the following exercises based on Principles 18 through 21, although an exercise may require the application of two or more of any of the principles. Where necessary, round linear answers in inches to 3 decimal places and millimeters to 2 decimal places. Round angular answers in decimal degrees to 2 decimal places and degrees and minutes to the nearest minute. Points A, B, C, D, and E are tangent points. a. If AB=46.00 and DE=66.00 , find 1. b. If AB=53.00 and DE=70.00 , find 1.arrow_forwardA sign hangs from two wires. The left-hand wire makes an angle of 60° with the horizontal, and the magnitude of the tension in the wire is 362 N. The right-hand wire makes an angle of 45° with the horizontal. Calculate the mass of the sign, in kilograms, to two significant figures. (Take the magnitude of the acceleration due to gravity, g, to be 9.8m s-2.) The mass of the sign is kg (to 2 s.f.)arrow_forwardA force of 26 Newtons turns a wrench L = 0.35 meters long as shown in the diagram below. The angle θ shown is 38 degrees. Calculate the magnitude of the torque. Put your answer in the box below. Round your answer to the nearest hundredths (two decimal places).arrow_forward
- A child exerts a force of 27 N on the handle of a small wagon. If the handle of the wagon is directed upwards 20° from the horizontal, find the amount of work done in moving the wagon 20 m horizontally. Round to the nearest N⚫m. The amount of work done is approximately N⚫m.arrow_forward(3) The 8000 lb steel tank is lifted by a pair of tongs as shown. Determine the magnitude of the pin force at C and the magnitude and the force at the tip E of the tong BCE. Ans: C=4650 lb, E = 6140 lb 4000 lb 14 in. 4000 lb 45 in. A B 35 in. 55 in. 8000 lb -55 in.-arrow_forward(4) Two parallel forces, each of magnitude F = 35 lb, are applied on the handlebars for the position indicated. Both n-axes shown are perpendicular to the left handlebar. Determine the couple created by the two forces. Ans: M=952 lb-in CW 15° " 10° 30" OA = OB 15° B F 10°arrow_forward
- The 454-N force is applied to the 80-kg block, which is stationary before the force is applied. Determine the magnitude and direction of the friction force F exerted by the horizontal surface on the block. The force is positive if to the right, negative if to the left. H₂ = 0.73 Hk = 0.56 Answer: F= i 39° N P = 454 Narrow_forward(2) The top view of a revolving door with two forces exerted on it is shown. The two forces have the same magnitude and are in opposite directions. If the resulting couple is 25 N·m, determine the force magnitude F. Ans: 16.18 N 15° 0.8 m 15° 0.8 marrow_forward10.Please show the answer for each section clearlyarrow_forward
- I am not sure how to solve this exercise. I will apprecite and explanation for this one and to solve similar exercises.arrow_forwardThe area, A, of an isosceles right triangle varies directly as the square of the length of its leg, /. By what factor does the area increase when the length of the leg is increased by a factor of 6? A factor of 36 O A factor of 12 O A factor of 12k O A factor of 36karrow_forward40. (a) A horizontal force of 20 lb is applied to the handle of a gearshift lever as shown. Find the magnitude of the torque about the pivot point P. (b) Find the magnitude of the torque about P if the same force is applied at the elbow Q of the lever. 20 lb 2 ft 0.6 ft P 0.6 ft 1 ftarrow_forward
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