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- A system comprised blocks, a light frictionless pulley, and connecting ropes is shown in the figure. The B block has a mass of 9.3 kg and is on a perfectly smooth horizontal table. The surfaces of the A block, which has a mass of 8.2 kg, are rough, with μk=μk= 0.25 between the block and the table. If the C block with mass 9.9 kg accelerates downward when it is released, find its acceleration.Find x such that the system is in equilibriumA heavy ball with a weight of 150 N (m = 15.3 kg) is hung from the ceiling of a lecture hall on a 4.6-m-long rope. The ball is pulled to one side and released to swing as a pendulum, reaching a speed of 5.6 m/s as it passes through the lowest point. What is the tension in the rope at that point?
- 36. A 5.6kg box is hang on both ends making an angle of 27° on one end and 58° on another, both from the horizontal line. If the string from 27° generates a tension of 34.2N, what is the y-component of the given tension? Group of answer choices 30.74 N 51.25 N 30.47 N 15.52 N No answerA 1.5 kg block is connected by a rope across a 50-cm-diameter, 2.0 kg pulley, as shown. There is no friction in the axle, but there is friction between the rope and the pulley; the rope doesn’t slip. The weight is accelerating upward at 1.2 m/s2. What is the tension in the rope on the right side of the pulley?As a science fair project, you want to launch an 700 g model rocket straight up and hit a horizontally moving target as it passes 26.0 m above the launch point. The rocket engine provides a constant thrust of 17.6 N. The target is approaching at a speed of 17.0 m/s. # 3 E D 80 F3 C 4 R F 888 V % 5 F5 T G ^ 6 B ▼ Part A At what horizontal distance between the target and the rocket should you launch? Express your answer with the appropriate units. FO Provide Feedback Y Value Submit MacBook Air H HA & 7 N F7 Request Answer U ** → 8 Units DII FB 1 M wwww. ? ( 9 K DD O :) O F10 P F11 1
- There is a mortar that is firing on soldiers who are approaching up the hill towards the mortar. The mortar is angled at an angle of theta = 66.0 degrees and is fired with a initial velocity of 153ft/s. How far down the hill does the shell strick if the hill subtends an angle phi = 35.0 from the horizontal? Ignore air friction. How long will the mortar shell remain in the air? How fast will the shell be traveling when it hits the ground?A 20 kg dog stands on a 40 kg platform that is supported by two ropes. One rope is attached to the right edge of the platform and the other is attached 50 cm from the left edge of the platform. The dog sits 50 cm from the right edge of the platform. A 5.0 kg cat jumps up, but is wary of the dog abs stays all the way on the left edge. The platform is 2.0 m long. What is the tension in each rope?15. A 40.0 kg child is playing on a swing. At the bottom of the swing, the child attains a speed of 4.60 m/s. If the rope holding the swing is 2.80 m long, what is the tension in the rope at the bottom of the swing?
- 7. An arrow of mass 0.018 kg is shot upward at an angle from the ground, reaching a maximum height of 25 m with a speed of 62 m/s. Neglecting air resistance, with what speed will the arrow hit the ground?11. A 450 g model rocket is on a cart that is rolling to the right at a speed of 4 m/s. The rocket engine, when it is fired, exerts a 6 N vertical thrust on the rocket. Your goal is to have the rocket pass through a small horizontal loop that is 22 m above the ground. At what horizontal distance left of the loop should you launch?A uniform plank of length 2.00 m and mass 27.5 kg is supported by three ropes, as indicated by the blue vectors in the figure below in each rope when a 725-N person is d = 0.500 m from the left end. magnitude of T, N magnitude of T, N magnitude of T, N 40.0° -2.00 m