4. 2D Kinematics
Intro to Relative Velocity
3:24 minutes
Problem 3.65b
Textbook Question
Textbook Question(II) A motorboat whose speed in still water is 4.30 m/s must aim upstream at an angle of 23.5° (with respect to a line perpendicular to the shore) in order to travel directly across the stream.
(b) What is the resultant speed of the boat with respect to the shore? (See Fig. 3–33.)
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