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Vectors> given length and direction then how to fi...

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given length and direction then how to find a vectorusing vector algebra

praveen , 9 Years ago

Grade 11

2 Answers

raj

hello praveen,

first you must know x-axis is represented by i,y-axis is represented by j and ,z-axis is represented by k.then in the given length identify the coefficient of x,y andz axes.then write like below shown.

ex:-a(1,2,3)

then vector is v=1i+2j+3k

Last Activity: 9 Years ago

Prabhakar ch

in two dimensional magnitude or length formula is square root of x²+y² and in 3d is square root of x²+y²+z²

Suppose that the coordinates of the vector are (3, 4). You can find the angle theta as the tan^–¹(4/3) = 53 degrees. So if you have a vector given by the coordinates (3, 4), its magnitude is 5, and its angle is 53 degrees

Last Activity: 9 Years ago

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