Use the diagram and the information given to find the velocity at the point A. Use energy considerations to do this problem. You should also assume that the cars were initially at rest at the beginning of the ride. A roller coaster designer wants to know what the speed of the cars will be at each point on the ride so that structural supports can be constructed accordingly. The heights of the ride are given such that the initial height is h = 137 m. point A is 41.1 m. point B is 61.7 m. point C is 80.8 m, and point D is 0 m (each height given above the ground level). (Eigure 1) ? m/s - Va Submit Request Answer Part B Use the diagram and the information given to find the velocity at the point B. m/s Figure < 1 of 1 > Submit Request Answer Part C C= Use the diagram and the information given to find the velocity at the point C. B= A= vc = m/s D=0m

Use the diagram and the information given to find the velocity at the point A. Use energy considerations to do this problem. You should also assume that the cars were initially at rest at the beginning of the ride. A roller coaster designer wants to know what the speed of the cars will be at each point on the ride so that structural supports can be constructed accordingly. The heights of the ride are given such that the initial height is h = 137 m. point A is 41.1 m. point B is 61.7 m. point C is 80.8 m, and point D is 0 m (each height given above the ground level). (Eigure 1) ? m/s - Va Submit Request Answer Part B Use the diagram and the information given to find the velocity at the point B. m/s Figure < 1 of 1 > Submit Request Answer Part C C= Use the diagram and the information given to find the velocity at the point C. B= A= vc = m/s D=0m

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Description: Use the diagram and the information given to find the velocity at the point A.Use energy considerations to do this problem. You should also assume that the cars were initially at rest at the beginning of the ride.A roller coaster designer wants to k

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter8: Potential Energy And Conservation Of Energy

Section: Chapter Questions

Problem 81AP: Repeat the preceding problem, but this time, suppose that the work done by air resistance cannot be...

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A child of mass m starts from rest and slides without friction from a height h along a curved waterslide (Fig. P5.46). She is launched from a height h/5 into the pool. (a) Is mechanical energy conserved? Why? (b) Give the gravitational potential energy associated with the child and her kinetic energy in terms of mgh at the following positions: the top of the waterslide, the launching point, and the point where she lands in the pool. (c) Determine her initial speed V0 at the launch point in terms of g and h. (d) Determine her maximum airborne height ymax in terms of h, g, and the horizontal speed at that height, v0x. (e) Use the x-component of the answer to part (c) to eliminate from the answer to part (d), giving the height ymax in terms of g, h, and the launch angle . (f) Would your answers be the same if the waterslide were not frictionless? Explain. Figure P5.46
A child of mass m starts from rest and slides without friction from a height h along a curved waterslide (Fig. P5.46). She is launched from a height h/5 into the pool. (a) Is mechanical energy conserved? Why? (b) Give the gravitational potential energy associated with the child and her kinetic energy in terms of mgh at the following positions: the top of the waterslide, the launching point, and the point where she lands in the pool. (c) Determine her initial speed V0 at the launch point in terms of g and h. (d) Determine her maximum airborne height ymax in terms of h, g, and the horizontal speed at that height, v0x. (e) Use the x-component of the answer to part (c) to eliminate from the answer to part (d), giving the height ymax in terms of g, h, and the launch angle . (f) Would your answers be the same if the waterslide were not frictionless? Explain. Figure P5.46