Use principles of physics to solve the problem . Consider these four situations:

Question

Use principles of physics to solve the problem . Consider these four situations:
Case A: The boat speed is 10 m/s; the boat direction is 0 degrees; the river speed is 5 m/s.
Case B: The boat speed is 10 m/s; the boat direction is +30 degrees; the river speed is 5 m/s.
Case C: The boat speed is 10 m/s; the boat direction is -30 degrees; the river speed is 5 m/s.
Case D: The boat speed is 10 m/s; the boat direction is +15 degrees; the river speed is 5 m/s.

(a) Rank these cases by the time it takes to cross the river, from largest to smallest. Use only > and/or = signs in your ranking (e.g., B>A>C=D). ?

(b) Rank these cases by the distance traveled in crossing the river, from largest to smallest.
?

Explanation / Answer

a) B=C>D>A b) B>D>A>C

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