Alyssa is carrying a water balloon while running down a field at a speed of 14 m/s. She tosses the water balloon forward toward a bucket with a speed of 23 m/s. Alyssa’s friend Naya is standing still next to the field.

The 23 m/s toss speed is measured relative to Alyssa, so that is the balloon’s speed from her perspective. Since Alyssa and the balloon are moving forward in the same direction, Naya measures their speeds added: 14 + 23 = 37 m/s. Therefore, choice D is correct: 23 m/s for Alyssa and 37 m/s for Naya.

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