Unit 3: Motion in Two Dimensions
Problem Set B
A boat moves at 4.5 m/s relative to the water regardless of which direction it travels through the water. If the water in a river is flowing at 1.5 m/s, how long (in seconds) does it take the boat to make a trip across the river if a 284 m displacement downstream is experienced.
A discussion of the principlesof relative motion and of the basic strategy for solving such problems is provided on the Set B Overview Page.
Detailed information about and discussion of the strategies for solving riverboat problems and other relative velocity problems is provided online at The Physics Classroom.
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