adding vectors

[Dorian Gray]

Greetings Fellow Mathematicians,

I am having some difficulties with a vector problem. I attached the problem as a picture.
Essentially, 1. I am not sure if I am on the right track to solving this problem and 2. If I am on the right track, how do I continue? Or if I am on the wrong track, how should I address the problem.

I attached my work.

Please any and all help, comments, suggestions, tips, etc are MUCH appreciated. Thank you!


I apologize if the numbers are hard to read. I tried to make it as large as possible.

 

[Dorian Gray]

Correction

CORRECTION!

"i" should be -3.18 (or -3.20). I accidentally wrote -3.87

 

[Deleted member 4993]

Greetings Fellow Mathematicians,

I am having some difficulties with a vector problem. I attached the problem as a picture.
Essentially, 1. I am not sure if I am on the right track to solving this problem and 2. If I am on the right track, how do I continue? Or if I am on the wrong track, how should I address the problem.

I attached my work.

Please any and all help, comments, suggestions, tips, etc are MUCH appreciated. Thank you!View attachment 2214
View attachment 2215

I apologize if the numbers are hard to read. I tried to make it as large as possible.

As I read the original problem, the unit of vector A is in "miles" and the units for B, C & D are all in "meters".

Is that correct?

 

[Dorian Gray]

As I read the original problem, the unit of vector A is in "miles" and the units for B, C & D are all in "meters".

Is that correct?

Thank you S. Khan you are correct. However I am not sure if the book is printed correctly. Some classmates and I have the same book yet some of the problems vary very slightly. our professor even acknowledged multiple errors in the book.

Assuming they are all in m though, how does my work look so far? Am I on the right track.
thanks for your response and noticing the different units

 

[Deleted member 4993]

Are you getting a "k" component in your answer?

That is not correct - according to my interpretation of the problem.

I am getting

i	j
2	3	A
1.690473	3.625231	B
-4	-6	C
-2.86788	4.09576	D
-3.17741	4.720991	R

 

[Dorian Gray]

Are you getting a "k" component in your answer?

That is not correct - according to my interpretation of the problem.

I am getting

i	j
2	3	A
1.690473	3.625231	B
-4	-6	C
-2.86788	4.09576	D
-3.17741	4.720991	R

Greetings S. Khan,
Thank you very much again for your response.

My number (-3.87) was supposed to be about -3.2. I had just not caught the adding error in that photo when I originally posted it.

And in regards to my R/K value I just added it up as well. It was not necessary.

And I talked to my professor yesterday, and my professor said the mile units in the problem was a typo in the book.

After making the necessary adjustments, I ended up with what you had/the correct answer.

Thanks again!