A 100-meter dash is run on a track in the direction of the vector i = 4i + 3j. The wind velocity w is 6i + 45 km/hr. The rules say that a legal wind speed measured in the direction of the dash must not exceed 5 km/hr. Will the race results be disqualified due to an illegal wind? [Hint: think projections...]

Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter3: Additional Topics In Trigonometry
Section3.3: Vectors In The Plane
Problem 10ECP
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A 100-meter dash is run on a track in the direction of the vector i = 4i + 3j. The wind
velocity w is 6i + 45 km/hr. The rules say that a legal wind speed measured in the direction
of the dash must not exceed 5 km/hr. Will the race results be disqualified due to an illegal
wind? [Hint: think projections...]
Transcribed Image Text:A 100-meter dash is run on a track in the direction of the vector i = 4i + 3j. The wind velocity w is 6i + 45 km/hr. The rules say that a legal wind speed measured in the direction of the dash must not exceed 5 km/hr. Will the race results be disqualified due to an illegal wind? [Hint: think projections...]
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