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Figure 2-21 shows the speed v versus hei...

Figure 2-21 shows the speed v versus height y of a ball tossed directly upward , along a y axis. Distance d is 0.40 m. The speed at height `y_(A)` is `v_(A)`. The speed at height `y_(B)` is `1/3 v_(A)`. What is speed `v_(A)` ?

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The correct Answer is:
`~~` 3.0 m/s
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