albertthesav

3 Questions
0 Answers

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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 прочитайте больше ..

albertthesav 10 hours ago

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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?

albertthesav 6 мар. 2024 г.

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Urgent triq question

Given and , find

albertthesav 3 мар. 2024 г.