A hard rubber ball, not affected by air resistance in its motion, is tossed upward from shoulder height, falls to the sidewalk, rebounds to a smaller maximum height, and is caught on its way down again. This motion is represented in the figure below, where the successive positions of the ball O through O are not equally spaced in time. At point O the center of the ball is at its lowest point in the motion. The motion of the ball is along a straight, vertical line, but the diagram shows successive positions offset to the right to avoid overlapping. Choose the positive y direction to be upward. (D (a) Rank the situations O through O according to the speed of the ball |vl at each point, with the largest speed first. (In both rankings, remember that zero is greater than a negative value. If two values are equal, show that they are equal in your ranking. Format your answers to the answers below using the following example: A > B = C > D. When points are equal, put them in alphabetical order. ) A=C=E>B=D (b) Rank the same situations according to the acceleration a, of the ball at each point. D>A=B=C=DE
A hard rubber ball, not affected by air resistance in its motion, is tossed upward from shoulder height, falls to the sidewalk, rebounds to a smaller maximum height, and is caught on its way down again. This motion is represented in the figure below, where the successive positions of the ball O through O are not equally spaced in time. At point O the center of the ball is at its lowest point in the motion. The motion of the ball is along a straight, vertical line, but the diagram shows successive positions offset to the right to avoid overlapping. Choose the positive y direction to be upward. (D (a) Rank the situations O through O according to the speed of the ball |vl at each point, with the largest speed first. (In both rankings, remember that zero is greater than a negative value. If two values are equal, show that they are equal in your ranking. Format your answers to the answers below using the following example: A > B = C > D. When points are equal, put them in alphabetical order. ) A=C=E>B=D (b) Rank the same situations according to the acceleration a, of the ball at each point. D>A=B=C=DE
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I've been marked wrong for ranking the speeds in part a. I ranked them A=C=E>B=D.
Transcribed Image Text:A hard rubber ball, not affected by air resistance in its motion, is tossed upward from shoulder height, falls to the sidewalk, rebounds to a smaller maximum height, and is
caught on its way down again. This motion is represented in the figure below, where the successive positions of the ball O through O are not equally spaced in time. At
point O the center of the ball is at its lowest point in the motion. The motion of the ball is along a straight, vertical line, but the diagram shows successive positions offset
to the right to avoid overlapping. Choose the positive y direction to be upward.
(a) Rank the situations O through O according to the speed of the ball |v,| at each point, with the largest speed first. (In both rankings, remember that zero is
greater than a negative value. If two values are equal, show that they are equal in your ranking. Format your answers to the answers below using the following
example: A > B = C > D. When points are equal, put them in alphabetical order. )
A=C=E>B=D
(b) Rank the same situations according to the acceleration
of the ball at each point.
D>A=B=C%=DE
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