A record of travel along a straight path is as follows 1. Start from rest with c

Question

A record of travel along a straight path is as follows 1. Start from rest with constant acceleration of 2.15 m/s2 for 17.0 s 2. Maintain a constant velocity for the next 2.70 min 3. Apply a constant negative acceleration of -9.23 m/s2 for 3.96 s (a) What was the total displacement for the trip? 6219 (b) What were the average speeds for legs 1, 2, and 3 of the trip, as well as for the complete trip? leg 1 leg 2 leg 3 complete trip 18.28 36.55 18.27 73.1 m/s m/s m/s Your response differs from the correct answer by more than 100%. m/s

Explanation / Answer

b) The average speed for legs the complete trip = (avg.. speed of leg 1+avg. speed of leg 2+avg. speed of leg 3)/3

= (18.28+36.55+18.27)/3 = 73.1/3= 24.36m/sec.

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