A roller-coaster car shown in the figure is pulled up to point 1 where it is released from rest. (Figure 1) Figure 32 m 2 4 < 1 of 1 26 m 14 m + ▼ Part A Assuming no friction, calculate the speed at point 2. Express your answer to two significant figures and Include the appropriate units. 22 = Submit Part B V3 = Submit μA Part C Value Request Answer Assuming no friction, calculate the speed at point 3. Express your answer to two significant figures and include the appropriate units. μA Value Units Request Answer ? Units ?

A roller-coaster car shown in the figure is pulled up to point 1 where it is released from rest. (Figure 1) Figure 32 m 2 4 < 1 of 1 26 m 14 m + ▼ Part A Assuming no friction, calculate the speed at point 2. Express your answer to two significant figures and Include the appropriate units. 22 = Submit Part B V3 = Submit μA Part C Value Request Answer Assuming no friction, calculate the speed at point 3. Express your answer to two significant figures and include the appropriate units. μA Value Units Request Answer ? Units ?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter4: The Laws Of Motion

Section: Chapter Questions

Problem 54P: A student is asked to measure the acceleration of a glider on a frictionless, inclined plane, using...

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One great form of athletic competition for bulldogs, American pit bull terriers, huskies, and many other breeds is the weight pull. Many of these dogs can pull weights two orders of magnitude greater than their own weight! Railsplitter, an American pit bull terrier, can pull a sled that has a total weight of 2215 lb along a horizontal surface. Suppose he pulls with a horizontal force of 3.50 103 N while friction is also working against the sled. If the magnitude of the net acceleration of the sled is 0.152 m/s2, find the value of the coefficient of kinetic friction, k, between the sled and the pulling surface. (The sled is normally on a set of rails.)