What Angle Should the Boat Head Physics Question?

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ferryboat sails between 2 towns directly opposite each other on river.

if boat sails @ 15 km/h relative water, , if current flows @ 6.3 km/h, @ angle should boat head?

made right triangle measurements , took inverse cosine of 6.3/15 wasn't correct answer.

a ferryboat sails between 2 towns directly opposite each other on river. if boat sails @ 15 km/h relative water, , if current flows @ 6.3 km/h, @ angle should boat head? made right triangle measurements , took inverse cosine of 6.3/15 wasn't...


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