A boat can be rowed at 8.0 km/h in still water.(a) How much time is required to row 1.5 km downstream in a river moving 3.0 km/hrelative to the shore?(b) How much time is required for the return trip?(c) In what direction must the boat be aimed to row straight across the river?(d) Suppose the river is 0.8 km wide. What is the velocity of the boat with respect toEarth and how much time is required to get to the opposite shore?(e) Suppose, instead, the boat is aimed straight across the river. How much time isrequired to get across and how far downstream is the boat when it reaches theopposite shore?

We are authorized to answer the first three sub-parts only. (a) The time taken by the boat in down…

Answered: A boat can be rowed at 8.0 km/h in…

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 9P

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A diver explores a shallow reef off the coast of Belize. She initially swims 90.0 m north, makes a turn to the east and continues for 200.0 m, then follows a big grouper for 80.0 m in the direction 30 north of east. In the meantime, a local current displaces her by 150.0 m south. Assuming the current is no longer present, in what direction and how far should she now swim to come back to the point where she started?
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