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March 30, 2017

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A boat crosses a river of width 113 m in which
the current has a uniform speed of 0.933 m/s.
The pilot maintains a bearing (i.e., the direction in which the boat points) perpendicular
to the river and a throttle setting to give a
constant speed of 2.58 m/s relative to the water.
What is the magnitude of the speed of the
boat relative to a stationary shore observer?

How far downstream from the initial position
is the boat when it reaches the opposite shore?

  • Physics - ,

    speedboat^2=.933^2+2.58^2

    time across: 113m/2.58m/s

    downstream distance along river: .933*timeacross

  • Physics - ,

    Thank you! :)

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