A motorist drives south at 20.0 ms for 3.00 min then turns, Ask an Expert

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A motorist drives south at 20.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.40 min, and finally travels northwest at 30.0 m/s for 1.00 min. For this 6.40 min trip, find the following values.

(a) total vector displacement m (magnitude) south of west

(b) average speed

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