A swimmer heads directly across a river, swimming at 1.60 m/s relative to the water. She arrives at a point 58.0 m downstream from the point directly across the river, 63.0 m wide. What is the speed of the river current?
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Q. A swimmer heads directly across a river, swimming at 1.60 m/s relative to the water. She arrives at a point 58.0 m downstream from the point directly across the river, 63.0 m wide. What is the speed of the river current?
Q. An investigator is x m from a building (where x = 88.0) and observes that a ledge is y degrees from the horizontal (where y = 35.0). How high is the ledge to the nearest metre?