1 A person can swim 4 m/s. The river has a current flowing 6 m/s directly east.
A. What will be the direction and velocity of the person if they aim directly across the river (north)?
B. If the person swims at constant speed, how long does it take them to swim across the 40 m wide river?
C. How far downstream will the person drift?
D. At what direction will the person have to swim to reach a point directly across the river?
E. If the river's current increases (is faster), will the person take more or less time to cross the river?
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