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Two kids are roller skating. Amy, with a mass of 55 kg, is traveling forward at 3 m/s. Jenny, who has a mass of 40 kg, is traveling in the opposite direction at 5 m/s. They crash into each other and hold onto each other so that they move as one mass. How fast are they traveling? Show your work

User Arayn
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Answer:

karena alat ukur yang bersekutu yang memiliki nilai dan satuan

User Michael Lawrie
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