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Physics 7 and Astronomy. Exercise 10 task 7
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Uploaded: 27.03.2017
Content: Физика 7 и астрономия. Упражнение 10 задача 7.rar 5,96 kB
Uploaded: 27.03.2017
Content: Физика 7 и астрономия. Упражнение 10 задача 7.rar 5,96 kB
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7. Two boys on roller skates, pushing away from each other, drove in different directions at a speed of 3 m / s 4 m / s, respectively. The weight of the first boy is 40 kg. What is the mass of another boy equal to?
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