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Two boats A and B can each travel at 4 m/s relative to a stream. At a certain moment they are 1.2 km apart with A going down stream and B upstream. The stream is flowing at 2 m/s. How far apart are they 20 s before they cross each other. If the engine of boat B were to fail at the moment the boats cross and the boat B were to travel with the stream, find the distance between the boats 30 s after the crossing.

Two boats A and B can each travel at 4 m/s relative to a stream. At a certain moment they are 1.2 km apart with A going down stream and B upstream. The stream is flowing at 2 m/s. How far apart are they 20 s before they cross each other. If the engine of boat B were to fail at the moment the boats cross and the boat B were to travel with the stream, find the distance between the boats 30 s after the crossing. 

Grade:11

1 Answers

Sb
11 Points
6 years ago
The two boats will be 160m apart before they cross each other and they will be 6pm apart after crossing each other

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