60° 60° The steel I beam in the drawing has a weight of 8.00 kN and is being lifted at constant velocity. What is the tension in each cable attached to its ends?
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- A traffic light hangs from a pole as shown. The uniform aluminum pole AB is 7.50 m long and has a mass of 12.0 kg. The mass of the traffic light is 21.5 kg. Determine A) the tension in the horizontal massless cable CD, and B) the magnitude of the force exerted by the pivot on the aluminum pole at point A. B C D 37° 3.80 m A 000You’re a highway safety engineer, and you’re asked to specify bolt sizes so the traffic signal shown in the Figure below won’t fall over. The figure indicates the masses and positions of the structure’s various parts. The structure is mounted with two bolts, located symmetrically about the vertical member’s centerline, as shown. What tension force must the left-hand bolt be capable of withstanding?The see-saw is balance.d What is the magnitude of the weight of the person hanging off the edge? 4m- 2m. LIST = N 11 WT-500 N
- A 12.2 m long board is supported from beneath at two locations. One is at the far left end of the board. The other is 1 m from the right end of the board. The board has a mass of 39.3 kg. What is the normal force (in newtons) applied by the right support?In the figure, a horizontal scaffold, of length 2.26 m and uniform mass 59.9 kg, is suspended from a building by two cables. The scaffold has dozens of paint cans stacked on it at various points. The total mass of the paint cans in 79.9 kg. The tension in the cable at the right is 739 N. How far horizontally from that cable is the center of mass of the system of paint cans? Number i Units mF. y M. mg AF FY f.Y Fixle Axis The ladder in the picture has a mass of 39 kilograms and a length 3.4 meters. What is the normal force pushing the ladder up from the floor? This force is labeled Ff v in the picture. FN Assume that the ladder's weight is evenly distributed, so it can be treated as a single force through the middle. If the ladder is at a 70° angle from the ground, what is the torque exerted by the weight (using the floor as the pivot point)? N.m The torque from the ladder must be balanced by the torque caused by the normal force on the wall, labeled Fw in the picture. Calculate this force. Fw = The normal force from the wall must be balanced by the friction force from the floor, labeled Ff y in the picture Determine thn
- A 4 kg cat sits on a 30 kg, 4 m long beam that is supported by a cable. She sits 0.5 m in from the right, and the cable is supporting the beam at a point 1 m in from the left. The beam is free to rotate at the hinge. What is the tension in the cable and horizontal and vertical forces exerted by the hinge? What direction do the vertical and horizontal forces point?As shown below, a beam of length L is in equilibrium and is attached to a cable which is pulling it against a frictionless wall. The beam is not attached to the wall and the wall is only exerting a normal force on the beam. Additionally, there is a 792 N box hanging on a wire from the end of the beam. Determine the cable tension & the beam weight. 0.86 L 45° 792 N tension= beam weight=Need help checking practice problems, image included. Thanks!
- Problem: A 80 kg construction worker is sitting 2.0 m from the right end of a 1450 kg, 6.0 m long beam. What is the tension in the cable attached at an angle of 30 deg. from the beam? (A) Pictorial Representation (B) Physical RepresentationA gymnast rises onto her toes, as shown in the picture on the right. The floor pushes up on the ball of her foot with a force of N=313 N. If 0=56.0°, what are FH the forces in her heel (TH) and ankle joint (T), and what is the angle o? Answers: TH=481 N; T,=761 N; b=20.7° N, 0. 4.25 cm 9.66 cm 5.17 kg uniform store sign is held from a uniform horizontal beam as shown. There is a cable attached to the right edge of the beam and is secured to the wall, 250 cm above where the beam meets the wall. The sign is symmetrically suspended by two cords, the left cord being 80 cm from the wall, and the cord on the right being at the right edge of the beam, 200 cm from the wall. a. What is the tension in the left and right cords that hold the sign? b. What is the tension in the cable? c. What is the horizontal component of the force that the wall exerts on the beam?