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Question: A small rubber ball is launched by compressed-air cannon from ground level with an initial speed of 11.8 m/s directly upward. Choose upward as the positive direction in your analysis.

Part A: What is the maximum height above the ground that the ball reaches?

Part B: How long does it take to reach the maximum height?

Part C: How long does it take to reach the ground after it reaches its highest point?

Part D: What is its velocity just before it hits the ground? (Indicate the direction with the sign of your answer.)

I need help to determine the maximum height above the ground that the ball reaches.

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