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Physics

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A river is flowing 4.0 m/s to the east. A boater on the south shore plans to reach a dock on the north shore 30.0 Degrees downriver by heading directly across the river. What should be the boat's speed relative to the water?

  • Physics -

    you know the angle, so sin30=4/V
    solve for V

  • Physics -

    a boat sails steadily across a river ,with velocity 20 m/s. if the river has width 30 m, how long does it take the boat to get across ,and how far downstream is it swept by the currenty first

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