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An athlete can normally run with constant speed 6 m s1. Using a vector diagram to
Chapter 13, Problem 1(choose chapter or problem)
An athlete can normally run with constant speed \(6 \mathrm{~m} \mathrm{~s}^{-1}\). Using a vector diagram to illustrate each situation, find the athlete’s speed if:
a. he is assisted by a wind of \(1 \mathrm{~m} \mathrm{~s}^{-1}\) from directly behind him
b. he runs into a head wind of \(1 \mathrm{~m} \mathrm{~s}^{-1}\).
Questions & Answers
QUESTION:
An athlete can normally run with constant speed \(6 \mathrm{~m} \mathrm{~s}^{-1}\). Using a vector diagram to illustrate each situation, find the athlete’s speed if:
a. he is assisted by a wind of \(1 \mathrm{~m} \mathrm{~s}^{-1}\) from directly behind him
b. he runs into a head wind of \(1 \mathrm{~m} \mathrm{~s}^{-1}\).
ANSWER:Step 1 of 4
(a)
The vector diagram for the velocity of the athlete when an athlete is assisted by wind can be shown as,