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Predict/Explain You throw a ball into the air with an initial speed of 10 m/s at an angle of 60° above the horizontal. The ball returns to the level from which it was thrown in the time T. (a) Referring to Figure 4-28, which of the plots (A, B or C) best represents the speed of the ball as a function of time? (b) Choose the best explanation from among the following:
- I. Gravity causes the ball’s speed to increase during its fight.
- II. The ball has zero speed at its highest point.
- III. The ball’s speed decreases during its flight, but it doesn’t go to zero.
Figure 4-28
Problem 46
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Chapter 4 Solutions
Modified Mastering Physics with Pearson eText -- Access Card -- for Physics (18-Weeks)
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