DC Physics logo HOME | Practice Problems } Monthly Features | Textbook Errata | Humor | About DC Physics


Make a Practice Test

Some Hints & Solutions

2D Relative Velocity

Problem #: 1
Variant #: 2

A boat which travels at 3.6 km/h relative to the water aims straight for the opposite bank of a river. If the average river speed is 9.4 km/h and the boat is 259.8 m downstream when it reaches the opposite side, how wide is the river?


Get Another 2D Relative Velocity Question

Try a Minitest: 6 problems of this type

NOTE: While these problems are made by a former University Physics professor and are seen thousands of times a week, it is possible that there are typo's or other errors that nobody has yet reported to be fixed. If you are convinced that there is a problem with the solution to this question please send the details to doug@dctech.com