anonymous
  • anonymous
HELPPP PLEASEE ASAP!!!! A motorist drives south at 28.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 3.00 min, and finally travels northwest at 30.0 m/s for 1.00 min. For this 7.00 min trip, find the following values. (a) total vector displacement m (magnitude) ° south of west (b) average speed m/s (c) average velocity m/s (magnitude) ° south of west
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
draw it!
anonymous
  • anonymous
I HAVE NO IDEA HOW TO DO THIS IM LOST CAN U PLEASE EXPLAIN
anonymous
  • anonymous
|dw:1370566281471:dw|

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anonymous
  • anonymous
the total path is going to look something like this:|dw:1370566414106:dw|
anonymous
  • anonymous
can you tell me what a vector is?
anonymous
  • anonymous
it is a quantity having direction as well as magnitude, especially. as determining the position of one point in space relative to another.
anonymous
  • anonymous
right. in this case the vectors have direction and velocity (magnitude). now what is the meaning of "vector displacement"?
anonymous
  • anonymous
it is a movement that changes the position of an object, as opposed to rotation
anonymous
  • anonymous
good. so what is the driver's displacement from the original position? (hint: what is the shortest distance between the original position and the final position)
anonymous
  • anonymous
|dw:1370567005111:dw|
anonymous
  • anonymous
a tip: split all the vectors into components, then add all the components to find the final vector, then use pythagorean theorem to find final magnitude and arctan to find the angle
anonymous
  • anonymous
can u show me how to do that please it will be very helpful
anonymous
  • anonymous
are you good at trig?
anonymous
  • anonymous
no
anonymous
  • anonymous
we can split up a vector by how far north/south it's going and how far east/west it's going.|dw:1370567737101:dw|
anonymous
  • anonymous
you know enough trig to find the legs using the hypotenuse and the angle, right?
anonymous
  • anonymous
no. Can you please tell me the total vector displacement and how to find the average velocity please and explain to me how you got the answers. I only have 45 more mins to do this
Mertsj
  • Mertsj
How is a homework assignment timed?
anonymous
  • anonymous
yes its timed i have 35 mins left
Mertsj
  • Mertsj
I have never heard of a timed homework assignment before.
anonymous
  • anonymous
well im in college in the south and they do things differently
Mertsj
  • Mertsj
Either that or you are taking a test.
anonymous
  • anonymous
im not taking a test. Can u please help??
anonymous
  • anonymous
can somebody help me please im running out of time here!!!!
Mertsj
  • Mertsj
I'm thinking everyone has figured out this is a test.
anonymous
  • anonymous
i dont know but i really need help i do not understand the question at all

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