002 (part 1 of 2) 10.0 points A boat crosses a river of width 209 m in which the

Question

002 (part 1 of 2) 10.0 points A boat crosses a river of width 209 m in which the current has a uniform speed of 0.954 m/s. T'he pilot maintains a bearing (1.e., the direc tion in which the boat points) perpendicular to the river and a throttle setting to give a constant speed of 3.19 m/s relative to the wa- ter. What is the magnitude of the speed of the boat relative to a stationary shore observer? Answer in units of m/s. 003 (part 2 of 2) 10.0 points How far downstream from the initial position is the boat when it reaches the opposite shore! Answer in units ofm

Explanation / Answer

v = 0.954 m/s

width = 209 m

part 1 of 2

v = sqrt (0.9542 + 3.192)

v = 3.3295 m/s

part 2 of 2

time = distance / velocity

time = 209 / 3.19

time = 65.52 sec

Therefore,

d = v*t

d = 0.954*65.52

d = 62.5 m

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