Question 1

A crow can fly at 10 m/s relative to the air surrounding it. In a flight to a city 173 km due north from the starting point, the crow encounters winds blowing from the west to the east at 5 m/s. If the crow maintains a velocity due north relative to the ground, how long does it take for the crow to reach the city?

• A. 1.15*10^4 s
• B. 1.73*10^4 s
• C. 2.00*10^4 s
• D. 3.46*10^4 s
• E. None of the above

Formula Sheet

Question 2

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