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In executing the biceps-curl exercise, the man holds his shoulder and upper arm stationary and rotates the lower arm OA through the range
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Engineering Mechanics: Statics
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- The 1200-lb homogeneous block is placed on rollers and pushed up the 10 incline at constant speed. Determine the force P and the roller reactions at A and B.arrow_forwardCurrent Attempt in Progress Four forces are exerted on the eyebolt as shown. If the net effect on the bolt is a direct pull of 460 lb in the y-direction, determine th necessary values of T and 0. Assume F₁ = 320 lb, F₂ = 280 lb, F3 = 435 lb, p = 25° F₁ Answers: T = 0= i i F₂ 2 D lb 0 T F₂ Xarrow_forwardBoth pulleys are fixed to the shaft and as the shaft turns with constant angular velocity, the power of pulley A is transmitted to pulley B. The bearings are in proper alignment and exert only force reactions on the shaft. Please note the positive direction of each axis. Determine the horizontal tension T in the belt on pulley B if θ=0∘. Determine the x, y, z components of reaction at the journal bearing C. Determine the x, y, z components of reaction at the thrust bearing D.arrow_forward
- Please help me with this Draw a free-body diagram of all the forces acing on the mass m and for all the forces acting on both the pulleys. Show that the minimum tension T1 for the mass to start sliding up the slope is about 3580 N. Hence, determine the tensions T2, T3 and the minimum force F for the mass to start sliding up the slope. Assuming that the cables with tensions T2 and T3 remain parallel to the inclined slope, determine the magnitude of the tension T in the strong cable just as the mass starts sliding up the slope.arrow_forwardDetermine the tension in the cable at B, given that the uniform cylinder weighs 350 lb. Neglect friction and the weight of bar AB.arrow_forwardDuring crash testing of an automobile, the lap and shoulder seat belts develop tensions of F = 260 lb. Treating the buckle B as a particle, determine the tension T in the anchor strap AB and the angle at which it acts. Use the force components method. Find the horizontal and vertical components T, and Ty. Use your solution for T, and Ty to determine the magnitude T and direction 0 of the anchor strap's tension. 60° F (Express your answer using three significant figures.) T, = ]lb (Express your answer using three significant figures.) Ty =| |lb (Express your answer using four significant figures.) T = lb (Express your answer using two significant figures.) counterclockwise from the negative x-axis.arrow_forward
- 2.0 m 100 kg 2.0 m 0.5 m 1.5 m 1.5 m The pulley at E is frictionless. Point B is a pinned connection; support A is a fixed support. The pin at C is in a smooth slot. s in: Determine the magnitude of of the x-component of the reaction force at A, Ax= N. Determine the magnitude of of the y-component of the reaction force at A, Ay= N. Determine the magnitude of of the external moment applied at A, MA= Nm. O O :arrow_forwardThe following system is in static equilibrium with the strings AB, BC, and CD connected to support the 40N and 50N weights as shown. The middle string BC is exactly horizontal, and points A and D are connected to a rigid support. Calculate the tension forces T₁, T₂, T3, and the angle 8. T₁ A 35° T₁ 35⁰ B 40 N 40 N T2 T2 0 T₂ C 50 N 50 N D T3 T3arrow_forwardThe 300kn sphere is supported by a pull p and a 200kn weight passing over a frictionless pulley. If a=30°. Computer the value of p and tangent.arrow_forward
- The jib crane is designed for a maximum capacity of 5 kN, and its uniform I-beam has a mass of 200 kg. Plot the magnitude R of the force on the pin at A as a function of x through its operating range of x = 0.2 m to x = 3.9 m. On the same set of axes, plot the x- and y- components of the pin reaction at A. Do these plots on a separate piece of paper. Then answer the following questions in Wiley Plus as a check for your work. (a) What is the value of R when x = 0.8 m? (b) What is the value of R when x = 3.2 m? (c) Determine the minimum value of R and the corresponding value of x. (d) For what value of R should the pin at A be designed? 40° m 5 KN -2.9 m 1.2 m Questions: (a) If x = 0.8 m, R= (b) If x= 3.2 m, R= i (c) The minimum value for R = i (d) The pin should be designed to hold i kN kN kN at x = kN.arrow_forwardThe 30 kg block C, rests on the uniform 15 kg bar AB. The cable connecting C to B passes over a pulley at D. Find the magnitude of the force acting between the block and the bar.arrow_forwardThe jib crane is designed for a maximum capacity of 6 kN, and its uniform I-beam has a mass of 190 kg. Plot the magnitude R of the force on the pin at A as a function of x through its operating range of x = 0.2 m to x = 3.8 m. On the same set of axes, plot the x- and y- components of the pin reaction at A. Do these plots on a separate piece of paper. Then answer the following questions in Wiley Plus as a check for your work. (a) What is the value of R when x = 1.6 m? (b) What is the value of R when x = 3.3 m? (c) Determine the minimum value of R and the corresponding value of x. (d) For what value of R should the pin at A be designed? 37° 6 KN 1.2 m 2.8 m Questions: (a) If x= 1.6 m, R= i (b) If x= 3.3 m, R= i (c) The minimum value for R = i (d) The pin should be designed to hold i kN kN kN at x = kN. i Earrow_forward
- International Edition---engineering Mechanics: St...Mechanical EngineeringISBN:9781305501607Author:Andrew Pytel And Jaan KiusalaasPublisher:CENGAGE L