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QUESTION

Suppose the roller coaster in Fig. 6-38 (h1 = 32 m, h2 = 11 m, h3 = 30) passes point A with a speed of 1.20 m/s.

Suppose the roller coaster in Fig. 6-38 (h1 = 32 m, h2 = 11 m, h3 = 30) passes point A with a speed of 1.20 m/s. If the average force of friction is equal to one third of its weight, with what speed will it reach point B? The distance traveled is 45.0 m.

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