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A dragster in a race passes the 100.0m point after 2.0 s and the 300.0m point after 9.5s. What was the average velocity during its displacement from 100.0m to 300.0m?
a)50m/s
b)32m/s
c)21m/s
d)27m/s
If you are in a frame of reference but cannot see outside of your reference frame, which one of the following possible motions for your frame could you not detect?
a)Motion at a constant speed in a straight line
b)Speeding up in a straight line
c)Slowind down in a straight line
d)Turning a corner at constant speed
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