15. A 300.0m wide river flows at 1.00 m/s. A girl swims across it at 1.80m/s relative to the water. Draw a diagrams,be organized. (a) What is the least time she requires to cross the river? (b) How far downstream will she be when she lands on the opposite shore? (c) At what angle to the shore would she have to aim, in order to arrive at a point directly opposite the starting point? (d) How long would the trip in part (c) take? |
15. A 300.0m wide river flows at 1.00 m/s. A girl swims across it at 1.80m/s relative to the water. Draw a diagrams,be organized. (a) What is the least time she requires to cross the river? (b) How far downstream will she be when she lands on the opposite shore? (c) At what angle to the shore would she have to aim, in order to arrive at a point directly opposite the starting point? (d) How long would the trip in part (c) take? |
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter3: Motion In Two Dimensions
Section: Chapter Questions
Problem 16P: A firefighter, a distance d from a burning building, directs a stream of water from a fire hose at...
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