Answer:
True
Explanation:
If it weren't from a 90 degree angle then the circle would be a bit more oval shaped
They move in a waves motion
Acceleration = (change in speed) / (time for the change)
change in speed = (speed at the end) minus (speed at the beginning)
change in speed = (zero) minus (28 m/s) = -28 m/s
Acceleration = (-28 m/s) / (13 sec)
Acceleration = -2.15 m/s²