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course Phy 231
If a ball rolls 56 cm_f down an incline in 4 half-cycles of the pendulum, what is its average velocity?14 cm_f/half-cycle
Assuming constant acceleration, sketch the graph of its velocity vs. clock time, for the interval of the roll.Find the coordinates of the two most obvious points on your graph. Find the coordinates of the points at the beginning, the middle and the end of the interval.Find the acceleration you infer from your graph.
My graph has time plotted along the x-axis in units of half-cycles and distance plotted along the y-axis in units of cm_f. My points are as follows: (0,0), (2, 14), and (4, 28). Acceleration = 7 cm_full/half-cycle^2
Explain in general how to calculate the acceleration of an object which accelerates uniformly from rest, given the corresponding changes in clock time and position.
If you plot the position with respect to clock time, the slope of the graph will give you acceleration. Or, delta v/delta t = acceleration.
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&#Very good work. Let me know if you have questions. &#