laylore has a couch that she wants to move in Davidson Student Center's lounge, with mass 12.7 kg. The couch starts at rest. Taylore pushes with an 24.4 N force, and the object has a displacement of 11.2 m, directed 30.0° from the direction of the force. What is the final speed of the couch? Your Answer: Answer
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with mass 12.7 kg. The couch starts at rest. Taylore pushes with an 24.4 N force, and
the object has a displacement of 11.2 m, directed 30.0° from the direction of the
force. What is the final speed of the couch?
Your Answer:
Answer"
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- The class I'm taking is physics for scientists and engineers! I am completely stuck. Need help. I have attached the problem. Please view attachment before answering. If you can please explain your answer so I can fully understand. Thank you!Box 1 (with mass m = 8.4 kg) is on a frictionless table moving with a velocity vo = 6.7 m/s. It collides with an identical box (let's call it box 2). The boxes stick together and launch horizontally off the table. What is the kinetic energy of the boxes when they land on the ground a distance H = 1.4 m below the table? H 1 Vo 2A 445 N boy swings on a 3.0 m long swing. If his horizontal speed at the lowest point is 3.0 m/s, what total force must the ropes holding the swing be able to withstand?
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- 84. Boxes A and B in Figure P10.84 have masses of 12.0 kg and 4.0 kg, respectively. The two boxes are released from rest. Use conservation of energy to find the boxes' speed when box B has fallen a distance of 0.50 m. Assume a frictionless upper surface. A B FIGURE P10.84You have a new internship, where you are helping to design a new freight yard for the train station in your city. There will be a number of dead-end sidings where single cars can be stored until they are needed. To keep the cars from running off the tracks at the end of the siding, you have designed a combination of two coiled springs as illustrated in Figure P7.41. When a car moves to the right in the figure and strikes the springs, they exert a force to the left on the car to slow it down. Both springs are described by Hooke's law and have spring constants k1= 1600 N/m and k2 = 3400 N/m. After the first spring compresses by a distance of d = 30.0 cm, the second spring acts with the first to increase the force to the left on the car in Figure P7.41.When the spring with spring constant k2 compresses by 50.0 cm, the coils of both springs are pressed together, so that the springs can no longer compress. A typical car on the siding has a mass of 6000 kg. When you present your design to…A 400 g particle moving along the x-axis experiences the force shown in (Figure 1). The particle's velocity is 9.0 m/s at x = 0 m. What is its velocity at x = 3 m?
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