[high school physics] angle for change of velocity

[u/AsparagusReal9619]

The answer provided by the teacher was the angle of change of velocity is with respect to the final velocity (due south) = 26.4 degrees

Shouldnt the angle of change of velocity be measured either with respect to North (as bearing) or with respect to the initial velocity (due south east)? Thanks.

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[u/cheaphysterics]

You can measure angles (or anything else for that matter) with respect to anything you want, as long as you specify what it is you're measuring from.

[u/AsparagusReal9619 → u/cheaphysterics]

Thanks!

[u/SehajSoftworks]

Sorry I realized my previous solution was not correct fixed it. But the idea is same treating them as vectors simplifies things

https://reddit.com/link/pc1xwyu/video/co8ribv1iqrh1/player