Compute each part of given questionquestion a tennis ball, Ask an Expert

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Compute each part of given question:

Question: A tennis ball gun launches tennis balls at 19.9m/s. It's pointed straight up and launches one ball; 2.0 s later, it launches a second ball.

Part I: At what time (after the first launch) are the two balls at the same height?

Part II: What is that height?

Part III: What is the first balls' velocity at that point?

Part IV: What is the second balls' velocity at that point?

Write your solution in appropriate format and provide references for above question thanks.

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