3. A thin rod is free to rotate without friction about a fixed axis at Point A. The other end (Point B) is attached to a (massless) cable at an angle of 45° relative to the rod. a. Initially the rod is being held stationary in a horizontal position. What is the force, F, in the cable? What are the forces that the support is putting on the rod at Point A? A Thin Rod m= 18 kg L=3m F W1 = 0 α1 = 0 α₂ = ? F₁ = ? b. The force, F, is suddenly changed to 200 N. What is the angular acceleration of the rod just after the force is changed? What are the forces that the support is putting on the rod at Point A now? Thin Rod m= 18 kg L=3m 45° F₂ = 200 N 45° B W₂ = 0 B

Chris and Jamie are carrying Wayne on a horizontal stretcher. The uniform stretcher is 2.00 m long and weighs 100 N. Wayne weighs 800 N. Wayne's center of gravity is 75.0 cm from Chris. Chris and Jamie are at the ends of the stretcher. The upward force that Chris is exerting to support the stretcher, with Wayne on it, is   Multiple Choice   250 N.   650 N.   550 N.   350 N.   400 N.

Show 19. The uniform rod in the figure has a weight of 14.0 N and is held by a rope on the right end. What is the magnitude of the normal force exerted on the Frictionless surface rod by the surface? A. 7 N B. 10 N C. 14 N D. 20 N E. 25 N F. 28 N G. 35 N O H. 40 N 9:54 AM 99+ 12/17/2020 DELL

As a torque activity, your Physics TA sets up the arrangement shown below. m2 A uniform rod of mass m, = 153 g and length L = 100.0 cm is attached to the wall with a pin as shown. Cords are attached to the rod at the r, = 10.0 cm and r, = 90.0 cm mark, passed over pulleys, and masses of m, = 226 g and m2 = 127 g are attached. Your TA asks you to determine the following. (a) The position r3 on the rod where you would suspend a mass m3 = 200 g in order to balance the rod and keep it horizontal if released from a horizontal position. In addition, for this case, what force (magnitude and direction) does the pin exert on the rod? Use standard angle notation to determine the direction of the force the pin exerts on the rod. Express the direction of the force the pin exerts on the rod as the angle 0F, measured with respect to the positive x-axis (counterclockwise is positive and clockwise is negative). r3 m Fp %3D OF (b) Let's now remove the mass m3 and determine the new mass ma you would…

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Two weights attached to a uniform beam of mass 38 kg are supported in a horizontal position by a pin and cable as shown in the figure. 2.4 m kN. 38 kg 11 kg 5.9 m 43° 34 kg What is the tension in the cable which sup- ports the beam? The acceleration of gravity is 9.8 m/s². Answer in units of kN. Answer in units of Your response... i Previous Responses X #1.0.6495 PALETTE

a. What are the conditions for static equilibrium? b. A 30.0 kg post is supported by two wires as shown. The post is 2.00 m long and a 5.00 kg wreath hangs 1.50 m from one end. Use the conditions for static equilibrium from part (a) to find the tension in each wire. Include a free body diagram as part of your answer.

62. I A 120-cm-wide sign hangs from a 5.0 kg. 200-cm-long pole. A cable of negligible mass supports the end of the rod as shown in FIGURE P12.62. What is the maximum mass of the sign if the maximum tension in the cable without Cable 250 cm breaking is 300 N? 200 cm PRISICS SHOPPE 80 cm FIGURE P12.62 3/3

Two identical, uniform beams weighing 260 NN each are connected at one end by a frictionless hinge. A light horizontal crossbar attached at the midpoints of the beams maintains an angle of 53.0 ∘∘ between the beams. The beams are suspended from the ceiling by vertical wires such that they form a "VV" A. What is the direction of the force that the hinge at point A exerts on the right-hand beam? B. What is the direction of the force that the hinge at point A exerts on the left-hand beam?

QUESTION 11 A uniform, 5.0-m-long, 30-kg plank is suspended from a high ceiling by two, uniform, massless, vertical cables. A 70-kg painter is standing 1.5 m from the cable at the right end of the plank. What is the force of the cable on the plank at the right end? 1.5 m 5.0 m а. 117 N b. 225 N С. 453 N d. 628 N е. 784 N