2D kinematics is almost identical to regular kinematics, except for that it's possible to go in more than one direction. Like if you throw a ball up to your right. It doesn't go straight up and come back down, nor does it travel to your right in a horizontal line, never slowing down (unless it runs into an unbalanced opposing force!! I remember that part!). No. It flies up in the air, moving to the right.
The way to measure this is fairly simple; you just need to remember the "Vegas rule." Ever heard of the term "what happens in Vegas stays in Vegas?" What happens on the x-axis stays on the x-axis and vice-versa.
We also covered something about SOHCAHTOA, which I completely forgot about as soon as I finished my Geom final exam last year (that's untrue... I forgot it before I started it), but for the life of me I can't remember...
I agree this unit was a bit confusing, but it seems like you get the basics of it! And i totally did not expect geometry to show up again in my life! But i guess we just never know what to expect with physics. Good post!
ReplyDeleteIt seems difficult at first, but after working on it for a while, you're sure to get it. Good luck on your semester final!
ReplyDelete