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The portion of the Mississippi River has a velocity of 1.0 meters per second. In still water, the ferry travels with a velocity of 1.4 meters per second. The ferry must transport the residents directly across the 1600 meter river span. Which of the following correctly describes the motion of the ferry?
  • a)
    The ferry can launch at 90° from the shore if it travels at its maximum velocity. 
  • b)
    The ferry must launch upstream at an angle of 45° from the shore with a velocity of 1.4 meters per second. 
  • c)
    The ferry will take about half an hour to cross the river at a relative velocity of 10 meters per second. 
  • d)
    The ferry will take about an hour to cross the river at its current velocity of 1.4 meters per second. 
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
The portion of the Mississippi River has a velocity of 1.0meters per s...
In order to cross the river at a point directly across the street, the ferry must launch upstream:

While this may not be immediately apparent, understand that 1.4, point, 4 is equal to √2. This creates a relationship for a 45 - 45 - 90 triangle, where the ratio of the sides is 1 : 1 : √2. Therefore, the ferry will launch at an angle of 45°, degrees from the shore.
As a result, the velocity of the boat relative to the earth is 1.0 m/s. Traveling 1600 meters at that speed, not 10 meters per second, will take 1600 seconds or 27 minutes.
The correct answer is that the ferry must launch upstream at an angle of 45° from the shore with a velocity of 1.4 m/s.
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Most Upvoted Answer
The portion of the Mississippi River has a velocity of 1.0meters per s...
A) The ferry can launch at 90
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The portion of the Mississippi River has a velocity of 1.0meters per second. In still water, the ferry travels with a velocity of 1.4meters per second. The ferry must transport the residents directly across the 1600meter river span. Which of the following correctly describes the motion of the ferry?a)The ferry can launch at 90° from the shore if it travels at its maximum velocity.b)The ferry must launch upstream at an angle of 45° from the shore with a velocity of 1.4 meters per second.c)The ferry will take about half an hour to cross the river at a relative velocity of 10 meters per second.d)The ferry will take about an hour to cross the river at its current velocity of 1.4 meters per second.Correct answer is option 'B'. Can you explain this answer? for MCAT 2025 is part of MCAT preparation. The Question and answers have been prepared according to the MCAT exam syllabus. Information about The portion of the Mississippi River has a velocity of 1.0meters per second. In still water, the ferry travels with a velocity of 1.4meters per second. The ferry must transport the residents directly across the 1600meter river span. Which of the following correctly describes the motion of the ferry?a)The ferry can launch at 90° from the shore if it travels at its maximum velocity.b)The ferry must launch upstream at an angle of 45° from the shore with a velocity of 1.4 meters per second.c)The ferry will take about half an hour to cross the river at a relative velocity of 10 meters per second.d)The ferry will take about an hour to cross the river at its current velocity of 1.4 meters per second.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for MCAT 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The portion of the Mississippi River has a velocity of 1.0meters per second. In still water, the ferry travels with a velocity of 1.4meters per second. The ferry must transport the residents directly across the 1600meter river span. Which of the following correctly describes the motion of the ferry?a)The ferry can launch at 90° from the shore if it travels at its maximum velocity.b)The ferry must launch upstream at an angle of 45° from the shore with a velocity of 1.4 meters per second.c)The ferry will take about half an hour to cross the river at a relative velocity of 10 meters per second.d)The ferry will take about an hour to cross the river at its current velocity of 1.4 meters per second.Correct answer is option 'B'. Can you explain this answer?.
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