10. Conservation of Energy
Motion Along Curved Paths
7:27 minutes
Problem 8.31
Textbook Question
Textbook Question(II) Suppose the roller-coaster car in Fig. 8–33 passes point 1 with a speed of 1.30 m/s. If the average force of friction is equal to 0.23 of its weight, with what speed will it reach point 2? The distance traveled is 45.0 m.
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