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albertthesav
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albertthesav
Score
12
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3
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3 Questions
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6
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+12
help with simple multi-variable calc/physics concept
In my derivation for the tangential normal expression for an acceleration vector, I got that acceleration equals:
However, I also learned it can be expressed as:
How are these two expressions
read more ..
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albertthesav
Jul 6, 2025
0
32
1
+12
Need help: angle between two vectors formula PROOF
If a and b are both vectors, then cos(x) = (a*b)/(|a|*|b|).
I don't understand why this cos(x) equals the right side of the equation. Can somebody explain, or better yet, could somebody prove the formula?
hairyberry
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albertthesav
Mar 6, 2024
0
72
1
+12
Urgent triq question
Given and , find
hairyberry
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albertthesav
Mar 3, 2024
+12 +12 
