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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 2.00 min, and ﬁnally travels northwest at 30.0 m/s for 1.00 min. Whats the total displacement?

2.) Im assuming we will have to use the equation vector v = sqrt( _i ^2 + _j^2) to find its magnitude.

3.)So I first did sqrt(20^2 + 25^2) to try and calculate the vector made by south and west directions. Then used that answer to calculate the vector made by northwest and west direction however that produced the wrong answer. I have a feeling im approaching the problem using a wrong method and im currently lost. Any help?