Math Problem Statement
A man can swim straight across a 100m wide river in 4 min if there is no current. If there is current it takes 5 min to cross straight. Determine the velocity of the current. Make a question like this but in a difficult way
Solution
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Math Problem Analysis
Mathematical Concepts
Relative Velocity
Vectors
Trigonometry
Formulas
Velocity = Distance / Time
Relative velocity of swimmer = sqrt(swimmer_velocity^2 - current_velocity^2)
Trigonometric compensation: velocity along resultant vector
Theorems
Pythagorean Theorem
Sine and Cosine rules in vector analysis
Suitable Grade Level
Grades 10-12
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