a river flows at a speed Vr=5.84 km/hr with respect to shore. a boat needs to go perpendicular to the shoreline to reach a pier across the river. the boat heads upstream at an angle of 30 degrees. if the time taken for the boat to cross is 15.3 min, what is the width of the river?(adsbygoogle = window.adsbygoogle || []).push({});

okay, i know the actual velocity of the boat over the velocity of the river(5.84) equals 1/sin30. so the velocity of the boat equals 11.68 km/hr. i divide by 60 and i get .195km/min. i multiply by 15.3 and get 2.98km. but thats not right. Pleeaaaase help

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# Homework Help: Whered i go wrong?

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