Determine the x-y and n-t components of the 39-kip force F acting on the simply-supported beam. F = 39 kips LYX 35 15' B ·n 27' 17°
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- Determine the force in member CE of the truss, and state if the member is in tension or compression. Aby 6 m D 600 N 4 m B 900 N 4 mThe beam BE shown is used for hoisting machinery. It is anchored by two bolts at B and C; it rests on a parapet wall. Note that the bolt is threaded with d= 22mm at the root of the threads. If this hoist can be subjected to a load of 9 kN, determine the stress in bolf BD and the maximum bearing stress at C given that the maximum allowable stress at A is 70 MPa -2.5m- -200 mmFind the force exerted by the biceps muscle in holding a 1.00-L milk carton (weight 9.90 N) with the forearm parallel to the floor. Assume that the hand is 35.0 cm from the elbow and that the upper arm is 30.0 cm long. The elbow is bent at a right angle, and one tendon of the biceps is attached to the forearm at a position 5.00 cm from the elbow, while the other tendon is attached at 30.0 cm from the elbow. The weight of the forearm and the empty hand is 16.9 N, and the center of gravity of the forearm with hand is at a distance of 16.5 cm from the elbow.
- In the figure 20.0 kg boom of length 4.00 m is supported by a cable that has a breakingtension of 1000 N. The cable is perpendicular to the boom and is attached 3.00 m from thepivot. Find: (a) the maximum load that can be suspended from the end of the boom; (b) thehorizontal and vertical forces exerted by the pivot in this case.A cook holds a 1.30 kg carton of milk at arm's length. What force FB must be exerted by the biceps muscle? (Ignore the weight of the forearm.) Nutrition Faete L 75.0° -25.0 cm: 8.00 cmy T T х F = 100N An object is subjected to three forces as shown in the figure. Assume 0 = 25.2 °, what is T if the object is in static equilibrium? Enter your answer with three significant figures.
- A uniform bar weinghing 60N has a lenght of 4M and is supported at its end by string. A load W=200N is placed at some point on the bar such that it is in equilibrium thenw the tension in the string at the left end is 80N. a) locate the position of W. b) find the tension in the string at the right end.Determine the normal force N inside each bar Sa function of the external force P 1.5 m 2 m Probs. 1-40/41/42When picking up an object from the ground, it is generally recommended that you "lift with your legs" - that is, raise and lower yourself by bending your knees but keeping your upper body upright. If instead, you "lift with your back" by bending at the hip so that your upper body is angled, then you put a great deal more stress on your spine and back muscles. Consider a person who is "lifting with their back" such that they are bent at the hip with their upper body is parallel to the ground (i.e., their spine is oriented horizontally). Let us calculate the tension in the back muscles and the compression on the spine in this situation. We will model the spine and upper body as a horizontal rigid rod or uniform density with a length of 50.0 cm and a mass of 40.0 kg. Assume that the person attempts to lift an object with their arms, which we will model as attached at the far end of the rod. Support of the back in this position is provided primarily by the erector spinalis muscle which we…
- WCLN.ca PHYSICS 12 6. A cable supports a uniform boom, which is pivoted at point P. cąble boom If the cable is attached two-thirds of the way along the boom from P, and the tension force in the cable is 840 N, what is the force of gravity on the boom? (ans: 2.24 x 10° (NA uniform 6.59 m long horizontal beam that weighs 269 N is attached to a wall by a pin connection that allows the beam to rotate. Its far end is supported by a cable that makes an angle of 52° with the horizontal, and a 586 N person is standing 1.16 m from the pin. R. FT 52 1.16 m 269 N 586 N 6.59 m Find the force Fr in the cable by assuming that the origin of our coordinate system is at the rod's center of mass. Answer in units of N.ect loca tecd What would happen to the stick? the Figure A 10m long uniform bar with a 80 W is attac hed by africtionless hinge to weighte of horizontal rope that wall and held by a malces anr le Qof 37° witn the bar. Culculate the distance from the hinge, x, tha t the 10kg tension T in the rope is 25N. Hint: Use g 10 W/kg, sin37°360 and cos 37°: 9. ang should besus peded if the n fo?