Mathematics, 21.02.2020 03:55, kaitlynn73

A steel ball is held by a ceiling-mounted electromagnet 4.0 m above the floor. A compressed-air cannon sits on the floor, 5.0 m to one side of the point directly under the ball. When a button is pressed, the ball drops and, simultaneously, the cannon fires a plastic ball. The two balls collide 1.4 m above the floor. What was the launch speed of the plastic ball?

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