A record of travel along a straight path is as follows:

1. Start from rest with constant acceleration of 2.45 m/s2 for 13.0 s.
2. Maintain a constant velocity for the next 2.30 min.
3. Apply a constant negative acceleration of -9.90 m/s2 for 3.22 s.
(a) What was the total displacement for the trip?

(b) What were the average speeds for legs 1, 2, and 3 of the trip, as well as for the complete trip?
leg 1 m/s
leg 2 m/s
leg 3 m/s
complete trip m/s


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