Hewitt-Drew-it! PHYSICS 8. Linear Motion Definitions

[@Alexey007]

Paul is the man. I'm reading his book and it's been awesome so far. I like impressing my friends and family with things from it. His passion for science and teaching is inspiring. Respect from Russia :D

[@FredHofstetter]

Teaching Conceptual Physics in a homeschool co-op to 12 HS aged students with varying levels of mathematical and conceptual skill sets. Having tools like this at our disposal is priceless. Thank you, Paul.

[@gregorybancroft5990]

Not judging just curious why do you keep saying "yum"

[@estherrhoads6650]

In his second video, at 3:45 he said that he said yum because it was intellectually tasty.

[@tortureddj]

great introduction for someone like me. It's been a while since I have done this in school. Time to learn it once more!

[@912pinkturtle]

You make this much easier to visualize than my AP teacher does. Thanks!'

[@CKERO5226997]

d=24m?

[@ideservehealth]

Distance equals 24 meters. Let me know if you got the same answer or not!

[@alleywoo6584]

BEST VIDEO EVER!!!!!!!!!!!

[@miquel5863]

Old video but isnt the answer at 3:22 supposed to be 100 m? Cuz your supposed to multiply the average speed by 40 s (which is the time it took) not 100 s.

[@lexusmorrow6095]

24 m?

[@MrWatcherQuiet]

I figured out the problem by using d=vot+1/2at squared so really d=1/2at squared acceleration is 3 half of that is 1.5 then you multiply that by 4 (time) squared = 16 multiply 16 by 1.5 and get 24. That's how I figured it out

[@MrWatcherQuiet]

24 meters

[@davidmucci773]

Exactly the way how I solved it.

[@helenwang3583]

if you use d=(Vo+V/2)t it works too

[@yamchew]

thank you! this breakdown super helped

[@MrSilverfish12]

I dont get where he got the 100 seconds from. Sorry for sounding dumb, but I lost him around that part.

[@HettyPatel]

YUMP!

[@jailbreakstudios856]

that help alot thnx

[@sergiobindel]

d= 18 ?

[@krayzie5968]

is there anyway to ever find out the answers to the questions he asks at the end of the Video. I think i did it right. I came up with 28m

[@GoodFortuneOfficial]

Shouldn't it be 'TOTAL TIME' aswell, under 'TOTAL DISTANCE'? Or well.. In both those equations you make use of the total time it took to travel a certain distance. So in that sense you would have to change both of those values to 'TOTAL TIME', which would not add that much value/ease. :P

[@Kamil-or6uv]

Saya suka tgk video ni # DKA1S5 # JOM ML

[@AshlynnBeard]

24 meters!

[@deeqaabiley3373]

how

[@aramish3037]

@@deeqaabiley3373 8x 3 or 6x4 or 2x12

[@karim1029]

​@@deeqaabiley3373 i was gonna explain but i realised 4 years later you should know by now

[@evroyspencer8087]

D = 48. Distance equals Velocity multiplied by Time. D = VT

[@jason-xn9le]

has to be 48m

[@armyfreak9389]

@@jason-xn9le It isn't. D=VT is only for moving at a constant speed. In this problem we are measuring the biker as he is accelerating constantly down the hill. So, his initial velocity is 0 (V0). His final velocity is 12 (Vf). The time it took him to cover the distance was 4 seconds. So, the formula we need to use is V0*T+1/2a*T^2. We must now solve for acceleration. If we look at the formula for finding final velocity, we can use basic mathematical principles to figure out acceleration. Vf=V0+aT or 12=0+a*4. Divide both sides by 4 and we have a=3. So we go back to our original formula plug in 3. 0*4+1/2(3)(4)^2 -> 0+(1.5)(16)= 24 so D=24.

[@artpride7883]

displacement= (average velocity x time) s= (v+u/2)t s=(0+12\2)4 s=24m

[@canataemaden9]

where he got 100 s? it should be 40s...

[@Yes..imAyushi]

d=24m!!!

[@jajonabe]

I ddoonnttt Getty tthhhiisss

[@BasedProletarianJacob420]

hi

[@pauraque]

Please never say yum again