Statics: Lesson 13 - Dot Product for Angles Between Vectors and Projections

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[@georgesadler7830]

DR. Hanson , thank you for a fine introduction of the Dot Product and it's applications in Statics. The Dot product is also introduced in Engineering Physics One for all freshman engineering and physics students.

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3:58 "you will never ever see this on the course!" After I heard that, I jumped to the next lesson.

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[@divanbooyens21]

Hi Dr. Hanson, You made a little mistake when you wrote the m components out for vector f1, it is supposed to be -3i^-2^+4k^ , i believe you swapped the i and j capped around

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nah Dr. is right

[@Abcdefg123.97]

Hi Dr.Hanson, can we use the dot product formula to find an angel between a force vector and an axis? or is dot product only applicable to finding angles between two vectors?

[@waasx]

It is applicable to find angle between the vector and it's axis component because the component is also a vector.

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Gomawo

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So why does the sanity check for the sum of the squares work for giving us back the magnitude of the force vector?

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For checking

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Admiral Ackbar

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It would be awesome if you left the whiteboard with all of the info up while you aren’t in the frame for a few seconds at the end of videos.

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recently uploaded..? Rerecorded or what happened lol

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amazing video. you rock!