CK-12-Physics-Concepts - Intermediate

(Marvins-Underground-K-12) #1

http://www.ck12.org Chapter 4. Vectors


Practice


Questions


http://www.youtube.com/watch?v=NHnOwJE5Who


MEDIA


Click image to the left for use the URL below.
URL: http://www.ck12.org/flx/render/embeddedobject/112416


  1. What does SohCahToa mean?

  2. Why is SohCahToa relevant to resolving a vector into components?

  3. Why is the sum of the components larger than the resultant vector?


Review


Questions



  1. A force of 150. N is exerted 22° north of east. Find the northward and eastward components of this force.

  2. An automobile travels a displacement of 75 km 45° north of east. How far east does it travel and how far
    north does it travel?



  • axial component:A component situated in or on an axis.

  • resolution of vectors:Any vector directed at an angle to the horizontal (or the vertical) can be thought of
    as having two parts (or components) that lie on the axes (one horizontal and one vertical). The process of
    identifying these two components is known as the resolution of the vector.

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