wasizaamm43 Posted June 13 Share Posted June 13 A hiker walks 200m west and then walk 100 m North in what direction is his/her resulting displacement? draw the figure to show your answer. Link to comment Share on other sites More sharing options...

swansont Posted June 13 Share Posted June 13 This sounds like homework (moved to HW help) and we’re not going to do it for you. What have you done thus far? Link to comment Share on other sites More sharing options...

Country Boy Posted June 13 Share Posted June 13 Have you ever taken a trigonometry course. If so what can you say about the angles in a right triangle with one leg twice as long as the other? You may need a calculator with trig function and their inverse functions. Link to comment Share on other sites More sharing options...

Country Boy Posted July 13 Share Posted July 13 Since it has been a month, a right triangle with one leg of length 200 m and the other of length 100 m has hypotenuse of length $\sqrt{100^2+ 200^2}= \sqrt{10000+ 40000}= \sqrt{50000}$ or about 223.6 m. That is the straight line distance from the hiker's end point back to his starting point. the direction is $\arctan(\frac{200}{100})= \arctan(2)$ which is about 63.3 degrees east of south (so 90- 63.3= 26.7 degrees southeast). Link to comment Share on other sites More sharing options...

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