Constants Part A (Figure 1)A swimmer wants to cross a river, from point A to point B, as shown in the figure. The distance di from A to C) is 200 m, the distance d2 (from C to B) is 150 m, and the speed vr of the current in the river is 5 km/hour. Suppose that the swimmer's velocity relative to the water makes an angle of θ-45 degrees with the line from A to C, as indicated in the figure To swim directly from A to B, what speed us, relative to the water, should the swimmer have? Express the swimmer's speed numerically, to three significant figures, in kilometers per hour. View Available Hint(s) Figure 1 of 1> km/hour Submit Provide Feedback v, 5 km/hour

Question
Constants
Part A
(Figure 1)A swimmer wants to cross a river, from point
A to point B, as shown in the figure. The distance di
from A to C) is 200 m, the distance d2 (from C to B) is
150 m, and the speed vr of the current in the river is 5
km/hour. Suppose that the swimmer's velocity
relative to the water makes an angle of
θ-45 degrees with the line from A to C, as
indicated in the figure
To swim directly from A to B, what speed us, relative to the water, should the swimmer have?
Express the swimmer's speed numerically, to three significant figures, in kilometers per hour.
View Available Hint(s)
Figure
1 of 1>
km/hour
Submit
Provide Feedback
v,
5 km/hour
Expand
Transcribed Image Text

Constants Part A (Figure 1)A swimmer wants to cross a river, from point A to point B, as shown in the figure. The distance di from A to C) is 200 m, the distance d2 (from C to B) is 150 m, and the speed vr of the current in the river is 5 km/hour. Suppose that the swimmer's velocity relative to the water makes an angle of θ-45 degrees with the line from A to C, as indicated in the figure To swim directly from A to B, what speed us, relative to the water, should the swimmer have? Express the swimmer's speed numerically, to three significant figures, in kilometers per hour. View Available Hint(s) Figure 1 of 1> km/hour Submit Provide Feedback v, 5 km/hour

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