4. A crane is used to hoist a load of mass m₁ = 500. kg. The load is suspended by a cable from a hook of mass m₂ = 50. kg. The load is lifted upward at a constant acceleration of 2.0 m/s². Determine (a) the tension, T₁, in the lower cable and (b) the tension, T2, in the upper cable.
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- 4. You have been tasked with retrieving a crate from a 4-m long beam that is suspended by two cables, as shown. While standing 1.5 m from the left edge of the beam, you silently hope that the cables are strong enough to hold the weight of the beam, the box, and you! The masses of the beam and you are 10 kg and 70 kg, respectively. The cables are rated for a tension of 1000 N. Do the cables hold? In other words, what is the tension in each cable? Hint: you can assume the box is sitting on the very end of the beam. 30° 20° 4.0 m38. A traffic signal weighs 150 N and hangs above an intersection. It is supported equally by wires on either side that form an angle of 120.0° with each other. (a) What is the tension in each of these wires? (b) If the angle between the wires is increased to 140.0°, what is the new tension? (c) Now suppose the left wire is tilted 20.0° from horizontal and the right is tilted 30.0° from horizontal. Again determine the tension in each wire.3. Block A weighs 150N and block B weighs 250N both rests on an inclined plane upward to the right at a slope of 3 vertical to 4 horizontal.The blocks are connected by a cable parallel to the plane, passing through the pulley then connected to another block C weighing 400N. The coefficient of friction under A is 0.30 and under B is 0.20. Compute a) the acceleration of the system and b) the tensions in the cable.
- 3. Block A weighs 150N and block B weighs 250N both rests on an inclined plane upward to the right at a slope of 3 vertical to 4 horizontal. The blocks are connected by a cable parallel to the plane, passing through the pulley then connected to another block C weighing 400N. The coefficient of friction under A is 0.30 and under B is 0.20. Compute a) the acceleration of the system and b) the tensions in the cable.1. A body of mass m is suspended by two strings making angles a and B with the horizontal. Find the tensions in the strings.The mobile shown in the figure below hangs at equilibrium. It consists of objects held by vertical strings. Object 3 weighs 1.40 N, while each of the identical uniform horizontal bars weighs 0.50 N. Find (a) the weights of objects 1 and 2, and (b) the tension in the upper string. edmp piol 1o1 ,nor enononoo mu apont be COF u (U40.) bns H boz/3 L3 boriupor L/2 L/2 40008 adgis Jerds 2 d bns tnot ol noowiod ob doun wolfloon Oeib
- 2. A large wrecking ball is held in place by two light steel cables. If the mass m of the wrecking ball is 3620 kg, what are (a) the tension TB in the cable that makes an angle of 40° with the vertical and (b) the tension TA in the horizontal cable? XXXXXXXXXX 40° ΤΑ m TBinclined 30° to the horizontal. Note Masses of that the tension, at any point in the rope between the mass and the knot, is uniform. Determine the tension in (a) cable AB, (b) cable BD, and (c) cable BC. kg and kg are suspended as shown, where strings AB and BC are horizontal, and BD A 7019A 4 kg watermelon is placed at one end of a 3.5 m, 271 N scaffolding supported by two cables. One supporting cable is at the opposite end of the scaffolding, and the other is 0.65 m from the watermelon. a) How much tension is in the cable at the end of the scaffolding? The acceleration of gravity is 9.8 m/s 2 . Answer in units of N. b) How much tension is in the cable closest to the watermelon?
- 1. The man is supporting his weight with friction. He's pressing into the rock walls with his feet and back. Suppose friction is supporting all his weight - he's perhaps steadying himself with the rope but not pulling up. The normal force on his feet (both feet together) and back are the same, 743.2 N. The coefficient of static friction is 0.54. If he's just barely not slipping down, what must be his mass? 40.95 Previous submissions: 40.95 kg kg incorrectA force exerted on a flexible object at its center, perpendicular to its length, gives rise to a tension on the object. (a) What equation represents the tension on the object? (b) If you hang a car of mass 1770 kg from a steel beam, you observe that the beam bends 0.095°. What is the tension in this beam, in newtons? F1. The man is supporting his weight with friction. He's pressing into the rock walls with his feet and back. Suppose friction is supporting all his weight - he's perhaps steadying himself with the rope but not pulling up. The normal force on his feet (both feet together) and back are the same, 743.2 N. The coefficient of static friction is 0.54. If he's just barely not slipping down, what must be his mass? Previous submissions: 40.95 kg