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A kayaker needs to paddle north across a 100-m-wide
Chapter 4, Problem 53P(choose chapter or problem)
A kayaker needs to paddle north across a 100-m-wide harbor. The tide is going out, creating a tidal current flowing east at 2.0 m/s. The kayaker can paddle with a speed of 3.0 m/s.
a. In which direction should he paddle in order to travel straight across the harbor?
b. How long will it take him to cross?
Questions & Answers
QUESTION:
A kayaker needs to paddle north across a 100-m-wide harbor. The tide is going out, creating a tidal current flowing east at 2.0 m/s. The kayaker can paddle with a speed of 3.0 m/s.
a. In which direction should he paddle in order to travel straight across the harbor?
b. How long will it take him to cross?
ANSWER:
Step 1 of 4
We are required to identify the direction he should peddle in order to travel across the straight.
We need to calculate the time taken to cross the harbor
Step 2 of 4
Direction of the resultant vector is given by