Can you PLEASE help me with these physics problems in desperate need of help?

Posted on 2015-09-21 06:39:00 in Physics by GIBSON

1. Start from rest with constant acceleration
of 2.95 m/s^2
for 14.7 s.
2. Constant velocity for the next 3.12 min.
3. Constant negative acceleration?8.56 m/s^2 for 5.51 s.

question 1:What was the total displacement for the
complete trip?
Answer in units of km
2: what was the average speed of the complete trip in meters per second

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