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A balloon filled with water is dropped from a height of 20.0 m. At the same...

A balloon filled with water is dropped from a height of 20.0 m. At the same time, a dart is fired straight up from the ground below the balloon. The initial speed of the dart is 15.0 m/s.

When does the dart hit the balloon and how high above the ground does the dart hit the balloon?

Assuming that the balloon breaks instantaneously and that the dart doesn’t affect the motion of the water, how long after the balloon breaks does the water reach the ground?

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