An athlete can normally run with constant speed 6 m s1. Using a vector diagram to

Chapter 13, Problem 1

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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 \(1 \mathrm{~m} \mathrm{~s}^{-1}\).

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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,

  

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