Yahoo Answers: Answers and Comments for If Vector A has x and y components of 6.4 and 7.8. Vector B has x and y components of 8.9 and 13. What is th? [Physics]
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From boriquita1123
enUS
Mon, 07 Feb 2011 18:50:45 +0000
3
Yahoo Answers: Answers and Comments for If Vector A has x and y components of 6.4 and 7.8. Vector B has x and y components of 8.9 and 13. What is th? [Physics]
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https://answers.yahoo.com/question/index?qid=20110207185045AAGMrTs
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From buchholtz: The x and y axes are at top angles to a minimu...
https://answers.yahoo.com/question/index?qid=20110207185045AAGMrTs
https://answers.yahoo.com/question/index?qid=20110207185045AAGMrTs
Wed, 30 Nov 2016 05:01:20 +0000
The x and y axes are at top angles to a minimum of one yet another, so the x and y aspects of your vector are the aspects of a top triangle with hypotenuse of four. by way of fact the x part is two times the y part, 4^2 = (2y)^2 + y^2 = 4y^2 + y^2 = 5y^2 sixteen/5 = y^2, so y = 4/sqrt(5) and x is two times that, or 8/sqrt(5)

From moe: Draw x and y axis. With the origin point as (l...
https://answers.yahoo.com/question/index?qid=20110207185045AAGMrTs
https://answers.yahoo.com/question/index?qid=20110207185045AAGMrTs
Mon, 07 Feb 2011 19:40:42 +0000
Draw x and y axis. With the origin point as (letter) O (assume)
Given Ax = 6.4 let OA’ = 6.4 towards LHS of the point O (towards () side of xaxis)
Ay = 7.8 let OA” = 7.8 towards + yaxis (top of the point O) (towards (+) side of yaxis)
So, resultant vector OA = OA” + A”A :a”A = OA’ = 6.4 = 6.4
OA = 7.8+6.4 or
OA = 14.2
Magnitude of vector A = 12.2
Angle A”OA:
Tan(A”OA) = tanA”A = (p/b) = A”A / OA” = 6.4/7.8 = 0.82
Tan(theta) = 0.82
Theta = 61.4 degrees = <A”OA so.
A”OA’ = 61.4 degrees
Likewise,
Bx =OB’=8.9 and By =OB“= 13
Resultant vector B :
OB = OBx+OBy = OB’+OB” = 8.9+13=21.9
Magnitude of vector B = 21.9
Angle BOB”
Tan( BOB”) = (p/b) = 8.9/13=0.68 then
Angle BOB”= 46.33 degrees
C = A+B = 12.2+21.9 = 34.1 <= answer