2 thoughts on “2.14”

    1. I made an error, sorry about that. The angle I used to do the calculations is 135 degrees, however in my haste I failed to explain why we should use 135, or to indicate that I did use 135.

      We should use 135 degrees because that is the angle from the positive X axis to the position vector. Note that the figure in the book shows the angle theta as being measured from the positive Y axis.

      The quantities are correct but I need to re-record this video to correct the error at about 2:48.

      Sorry about that.

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Tutoring for Statics, Dynamics, and Controls courses at Texas A&M