Vector A has y-component Ay= +12.0 . A makes an angle of 32.0

  • #1
149
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Vector A has y-component Ay= +12.0 . A makes an angle of 32.0 degrees counterclockwise from the + y-axis.

What is the x - component of A?

What is the magnitude of A?


How can I do this?
 

Answers and Replies

  • #2
191
8


You draw it, and then use trigonometry. (Always draw the problem!) Because you have learnt about decomposition about vectors into components, right? This is more or less the same problem.
 
  • #3
149
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I don't understand the + y - axis
 
  • #4
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I don't understand the + y - axis

That would be the positive y axis, as in, going upwards, should you choose to define upwards as being positive.

Then, like Hypersphere said, you always need to draw a diagram, and take the proper trigonometric steps to figure out the components and magnitude.
 
  • #5
51
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Can you locate the y axis and then tell what part of it is positive? It should be pretty easy to tell. And from there you can figure out where to draw the vector.
 

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