Triathlete Physics Question!!! Please Help!!!?

Posted on 2017-06-02 18:35:00 in Physics by MICHLE

A triathlete on the swimming leg of a triathlon is 140.0 m from the shore (a). The triathlete s bike is 60.0 m from the shore on the land (b). The component of her distance from the bicycle along the shore line, ( x + y in the diagram), is 129.8 m. 

1) If the triathlete s running speed is 9.15 m/s and swimming speed is 1.921 m/s, calculate the value of x so that the triathlete reaches her bike in the least amount of time. 

2) Calculate the minimum time required to reach the bicycle.

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