A roller coaster in Figure 1.40 starts at the top of a straight trackthat is inclined 30

Chapter 1, Problem Problems 29

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A roller coaster in Figure 1.40 starts at the top of a straight trackthat is inclined 30 with the horizontal. This causes it to accelerate ata rate of 4.9 m/s2 (1/2 g).(a) What is the roller coasters speed after 3 s?(b) How far does it travel during that time?

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