zireyasmith9 zireyasmith9

07-10-2020
Physics

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It takes Serina 0.25 hours to drive to school. Her route is 21 km long. What is Serina’s average speed on her drive to school?

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pfellas pfellas

07-10-2020

Speed = distance / time = 21 / 0.25 = 84 Km/hr

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