An athlete standing west of a river flowing from north to south at 0.4 m/s and is 72 m wide swims at 16.2° to the Southeast and takes 1 minute 40 seconds to go through itb) Using the horizontal component of the swimmer's velocity and the angle of the swimmer speed, calculates the speed of the swimmer without the drag of the river (remember that it is a vector and must have express its speed and direction). .

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