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Solve the all parts of given question:
Question: A hot air balloon is rising with a constant speed of 2.75 m/s. When the balloon is 8.00 m above the ground, a package is launched horizontally with a speed of 4.00 m/s relative to the balloon.
Part A: What is the initial velocity (magnitude and direction) of the package according to an observer on the ground?
Part B: What is the maximum height reached by the package?
Part C: How long does the package remain in the air after leaving the balloon?
Part D: What is the horizontal distance from the launch point to where the package hits the ground?
Do not copy and paste from Google, explain your answer clearly.
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