Vector component question

  • Thread starter kelli
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Homework Statement



After driving 80.0 km west, a car turns southwest and proceeds another 30.0 km. What is the displacement of the car from the point of origin (magnitude only)?


Homework Equations





The Attempt at a Solution



I tried drawing this out. I am given no angles, does this mean i add the vectors in head to tail fashion. or do i use trig and additon of vector components? please help. im not asking for the answer just steps/explanations.
 
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Answers and Replies

  • #2
berkeman
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Homework Statement



After driving 80.0 km west, a car turns southwest and proceeds another 30.0 km. What is the displacement of the car from the point of origin (magnitude only)?


Homework Equations





The Attempt at a Solution



I tried drawing this out. I used trig to find out the x and y components. my resultant was 84 however the answer is wrong. I just dont know how to find the angles. I can do vector problems, but ive never done one without a given angle.

Welcome to the PF.

Please show us your work so we can find the error...
 

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