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an object covers half the distance with a speed of 30m/s and the other half with a speed of 30m/s. calcuate the average speed of the whole journey. |
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Answer» HEY! simply, let first speed be v1 and second be v2. =) Av = 2v1v2/(v1+v2) = 2*30*30/(30+30) = 2*30*30 / 60 = 30 m/s hope it HELPS you! |
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