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A road race is taking place along the track shown in the figure (Figure 1) . All of the cars are moving at constant speeds.

A road race is taking place along the track shown in the figure (Figure 1) . All of the cars are moving at constant speeds. The car at point F is traveling along a straight section of the track, whereas all the other cars are moving along curved segments of the track. Let be the velocity of the car at point A. What can you say about the acceleration of the car at that point? Let be the velocity of the car at point C. What can you say about the acceleration of the car at that point? Let be the velocity of the car at point F. What can you say about the acceleration of the car at that point?Assume that the car at point A and the one at point E are traveling along circular paths that have the same radius. If the car at point A now moves twice as fast as the car at point E, how is the magnitude of its acceleration related to that of car E. Assuming that all cars have equal speeds, which car has the acceleration of the greatest magnitude, and which one has the acceleration of the least magnitude? Let be the velocity of the car at point D. What can you say about the acceleration of the car at that point?

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