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OpenStudy (anonymous):
A cross-country runner runsat 8 km/h on a bearing of 150° T for 45 mins, then changes direction to a bearing of 053° T and runs for 80 mins until he is due east of the starting point a) How far was the second part of the run? b) What was his speed for this section? c) How far does he need to run to get back to the starting point?
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