Vectors lesson 7 - Find the x and y components of a vector

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In this lesson we talk about how to find the x and y components of a vector given its magnitude and direction, by drawing a right angle triangle with the x axis and using trigonometry.
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Hi Magic Monk, I have a problem that I don't understand. Please could you guide me?
"A vector has a magnitude of 3.5 m and points in a direction that is 145 degrees below the x axis. Find the x and y component of this vector. "

keithkanengoni
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This might be a silly question, but I thought angle theta was supposed to be 20..Why South is 90 and not 270 degrees? Many thanks for your video!

KoolViking
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isn't it in a negative direction so - 18.8 units ?

TheDeadlyassain