physics

A motor boat whose speed is 2.6 m/s in still water, needs to point upstream at an angle of 28.5 in order to travel straight across the river. Calculate the speed of the current and the resultant velocity of the boat across the river.

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asked by jane
  1. current speed is 2.6 sin 28.5°
    boat velocity across is 2.6 cos 28.5°

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    posted by Steve

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