4. 2D Kinematics
Intro to Relative Velocity
3:12 minutes
Problem 3f
Textbook Question
Textbook QuestionA river flows due south with a speed of 2.0 m/s. You steer a motorboat across the river; your velocity relative to the water is 4.2 m/s due east. The river is 500 m wide. (b) How much time is required to cross the river?
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