Posted by Elisa on Wednesday, June 4, 2008 at 6:48pm.
There is a parabolic position vs time graph.
Which of these is true:
The object moves
1. in a parabolic trajectory.
2. along a straight line.
3. along an arc of a circle
wouldn't 1 and 3 produce the same/similar position graph?

Physics  drwls, Wednesday, June 4, 2008 at 7:08pm
No, #1 and #3 would be different trajectories. Note that they are asking about position vs. time, not about the shape of the trajectory

Physics  Elisa, Wednesday, June 4, 2008 at 7:21pm
So in which one would the graph of position vs time be a parabola?
If the object moves along a straight line, then wouldn't the position graph just be an increasing line with with positive slope?

Physics  drwls, Wednesday, June 4, 2008 at 7:25pm
If position vs time is a parabolca, the object is accelerating at a constant rate along a straight line.
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