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Exercises

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Exercise 5

A hummingbird is flying back and forth with velocity given by the graph below, where positive velocities mean the hummingbird is flying North and negative velocities mean the hummingbird is flying South:

(a) At what time(s) is the hummingbird moving neither North nor South?

(b) On what time interval(s) is the hummingbird moving North?

(c) On what time interval(s) is the hummingbird moving South?

(d) At what time(s) is the hummingbird moving most rapidly North?

(e) At what time(s) is the hummingbird moving most rapidly South?

(f) At what time(s) is the hummingbird moving most rapidly?

(g) On what time interval(s) is the hummingbird speeding up?

(h) On what time interval(s) is the hummingbird slowing down?

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