Kinematics Part 1: Horizontal Motion

Alright, it's time to learn how mathematical equations govern the motion of all objects! Kinematics, that's the name of the game! Ready? Yes you are. Come on, it'll be fun. We will start simple, horizontal motion only. The math is really easy, I promise. You're being a big baby, just watch this!

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[hamidalrawi]

you helped me in math, then in chemistry, then Organic chemistry, and now in physics <3. Thank your professor dave

[ayeshan]

I paid thousands for online classes just for my professor to send us a link to your videos

[brianaalvarez]

I just wanted to take the time to genuinely thank you sincerely. For the past 2 weeks in my physics class I have been extremely lost, and your video helped me apprehend the necessary conceptions. Thank you so much.

[LostInThaStereo]

You helped me pass genetics and O. chem the second time around. Now here I am drowning in physics and I find out you teach that too... BLESS YOU PROFESSOR DAVE :')

[oz]

Astonished with your unbelievable teaching skills, I never understood its concept in my whole life till I came across this video, what a time and life savor, thanks man, much appreciated!

[raritea]

Got my first ever physics midterm on Monday and things are DEFINITELY starting to click better after watching these videos. Thank you!!

[MinaMonTea]

after acing the chemistry test a while ago, time to finish up the finals with physics, thanks a lot for helping me Jesus!

[bobbobful]

Why is professor Dave better than the professors I pay thousands for per semester?

[pyxl]

this is like the first time ive ever really commented on anything, but you have helped relieve so much stress about not being able to understand whats happening In my class. Thank you a ton, seriously.

[flhncqb]

Wow. I can't believe I learned more in this one video than my physics teacher has even tried explaining in the whole term. I wrote a few pages of notes from this and I finally understand instead of feeling overwhelmed and stupid. I really wish more teachers could explain subjects like this, it seems so much easier now.

[nickvanderwater]

You, prof leonard, and the organic chemistry tutor are in the stem hall of fame

[jdorsett]

ik this is pretty late but what i did is I rearranged the equation to get "a" (acceleration) by itself. Which is (vf^2 - vi^2)/2d. All i did from here was plug in the values which we know are [vf=0] cuz it skids to a stop, [vi=15] cuz that's our initial velocity before the skid, [d=50] cuz that's the total displacement traveled during the skid, then with a trusty calculator it comes out to -2.25m/s^2. If you're confused on why it's negative it's because it's going in the opposite direction of the velocity, thus slowing the bike down until a full stop! 🛑

[rachellehales]

You explain things so well. I listen to inclass lectures and read the book, but learn the most from watching your videos. I watched for biology and organic chem, and did well in both classes. Now on to physics. Thanks professor Dave!

[fortimusprime]

ABSOLUTELY MIND-BLOWN! (I mean that in the best way.) Something from an entire chapter that I just couldn't comprehend you explained it in less than 7 minutes! You are a talented person with a gift in teaching! Thanks for your help! You just got a new subscriber! God bless you!

[preciouskarlamalolesloares]

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[freedomofmusic]

Your videos are incredibly helpful and well explained. I love how you color the things you are explaining. Your videos have helped me in Calculus & now Physics. This year I got hired as a math tutor at my college, I recommend your videos to students all the time & sometimes I watch them with students I'm helping because you explain things so much clearer & more concise than I can. Thanks Professor Dave!

[DNSMLT]

If only your videos were around 30 years ago.
It's a little late for me now but Im still going to follow. Thank you!!

[meezi_moo]

thank you SOOO much for making this. I've been struggling with kinematics really badly in class, and this explained it in such an easy and understandable way

[ohdeardeer]

I'm relying on you, professor Dave. I've been struggling so hard with this the past few days... Let's see if you save my quiz tomorrow, or hopefully my test next week!

[Psiredem]

I may be way too mathematically illiterate to grasp everything in this video, but at least you have helped me figuring out a few things about physics and basic algebra with this single video. Thank you, Professor Dave!