Physics 7 and astronomy. Exercise 8 task 1

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Uploaded: 26.03.2017
Content: Физика 7 и астрономия. Упражнение 8 задача 1.rar (6,64 kB)

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1. During t1 = 20 s, the body moved at a speed of V1 = 20 m / s, during the next t2 = 20 s - with a velocity of V2 = 30 m / s. What is the average speed of the body?

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