How Do You Know When to Use Cos or Sin in Physics? : Physics & Math

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You can tell when to use Cos or Sin in physics by paying attention to just what type of problem you have in front of you. Find out how you know when to use Cos or Sin in physics with help from a warm, engaging and experienced science enthusiast in this free video clip.
Expert: Kristin Oviedo
Bio: Kristin Oviedo is a warm, engaging and experienced science enthusiast from Arizona.
Filmmaker: Blake Higgins
Series Description: Physics and mathematics are directly related in a number of very important and very interesting ways. Get tips on physics and math with help from a warm, engaging and experienced science enthusiast in this free video series.

[@syd_jzx100]

Just to let you guys know. I'm a third year Engineering student who had to come to this video to remind myself on how cosine and sine work in mechanics. I've gotta rethink my life...

[@TheSniper9752]

Feel you man, I'm doing A level physics and i am revisiting mechanics and its always the simplest crap that you forget after all the complicated work you do on topics like capacitance, electricity and other gubbins.
It's even worse when the textbook doesn't explain it clearly or just assume you know this.

[@syd_jzx100]

Yeah exactly man. It's weird how are brains are wired.

[@minthantoo3509]

Guess what?You are not the only one.

[@ShaneRavenbane]

And now one more - in the same boat. This is a great video: simple and to the point. It's frustrating that this simple concept has never been so clearly explained in any of the math courses I've taken - I'm in Calculus II now, and this was still helpful.

[@MKhurram]

I am also here for the same purpose but couldnt find it useful.

[@tobyajayi8559]

I suffered for years in college just because I missed this crucial part.
now it all makes sense. thank you

[@jibanjeetmohanty2541]

😂😂

[@tanzeeltonmoy2381]

you have no idea how right you are.

[@theendman8352]

I know this is four years old, but this was EXACTLY my problem with physics and engineering until now. This just saved me so much!

[@srikanths6411]

Finally my 6 years doubt, where to use sine and cosine are clarified

[@SahilKumar-fk6dw]

11th JEE 😂😂

[@jehanzebkhan6158]

Superb Madam. Which subject teacher you are?

[@srikanths6411]

@@SahilKumar-fk6dw You may be a brilliant student, but I am not. Don’t dispirit others it will lead you to mariana trench.

[@alexejcrescini263]

My goodness, we are the same my man..been struggling for 7 yrs now 😅😂...just cant figure out how to use this in statics.

[@welcometotheshow5247]

It’s uncanny on how much I relate to this

[@josiahshaver5335]

Best part: "sine is whatever is opposite Theta, cosine is whatever is adjacent to Theta" 3:34

[@sureshsavithri01]

💯

[@fauzannrifai]

how do we define the theta?

[@allindiahappiness2374]

Didn't even had to watch the video your comment just solved my whole question.....👍

[@Rjhumanity]

​@@allindiahappiness2374yup biro 😊

[@user-ee5hl8lu5q]

​@@fauzannrifaiisn't thetha the angle?

[@luiscardenas8639]

THIS IS SO IMPORTANT , i struggled so hard in physics trying to figure this bit out , amazing video!

[@fictionworm7331]

In which grade are you?

[@851995STARGATE]

So the basic summation of this is
sin of theta is whatever is across from theta
cos of theta is whatever is adjacent

[@aaroncoulombe555]

851995STARGATE So much more helpful than the video

[@iliketrain10]

+851995STARGATE This is what my physics teacher taught, way easier than this video.

[@851995STARGATE]

iliketrain10
Yup

[@KoRnTwIsT1000]

i know this is not the right way to do it but i just memorize the area where cos and sin is located in the x and y axis

[@kanchabeni6743]

nope !! sin is the side across from theta!

[@creamyhora4005]

I didn't know this many people had the same doubt😂😂 I thought I was the dumb one... But thank you soo much.. This helped alot

[@rianola438]

😂 me too 🤚

[@RishabhSingh-sr8vj]

Bhai meko bhi yaar😂.

[@SilabGuy]

We were doing the force apparatus lab and I finally understand when to use sin/cosin to find components!! And was able to find equilibrium (even when the unknown mass was rotated 90 degrees)!!

[@MediocreMachining]

Thank you so much for the simple explanation! It really does not take long to add in all the little details that help pull everything all together.

[@sharuru8107]

All those years of pain, I will now use this to pass my mechanics test tomorrow. Thank you very much.

[@ZinlinXin]

Here for physics, end up having anxiety for the chalk sound lmao 😂

[@shsftech3792]

hahaha

[@chambinabi9646]

same 😂

[@gp873]

Wow, such an easy explanation. It’s the only thing I kept struggling with in physics

[@aphieuthon3237]

Very helpful, I really appreciate your precise, and hit to the point.

[@coreygraham5485]

This is the best video I have found for this. Thank you sooo much

[@Cloudy_Jay8]

I have to watch this at least once a month as a reminder... thank you for making this video!

[@Fetska1]

thank you so much its been 9 years and it's still a good video

[@vivianamorales7547]

As an engineering major, you just saved my life!

[@kevinmills9805]

Thank you Thank you Thank you!!!

[@capri2673]

Thanks for this clear explanation.

[@shruti0525]

Thank you so much i love you for this 😭😭😭😭😭😭❤

[@HiAgarwal]

Thank you mam for understanding this....

[@d7wess]

she is so chill

[@ism8299]

THIS IS SO IMPORTANT , i struggled so hard

[@suvamsickly3609]

Thank you Very much ! !

[@siddhantsinha369]

Good explanation, thanks..

[@lee-around]

THANK YOU.

[@cinpauk]

thank u so much yr video is very helpful to me

[@takoshellsxd]

THANK YOU SO MUCH!!!

[@ankitaaarya]

I don't have words...omgggg thanks

[@rochellelacamento7368]

Thank you so much

[@yanim1890]

thank you! ❤

[@brettkulcsar]

thank you so much

[@chelseanelson9461]

this was very helpful! thank you!

[@daelenecloete5852]

This was so helpful - finally a straight answer with an explanation that makes sense. Thanks! 😊

[@bhavesh_tongale]

R u a actress

[@kamilhusain8699]

Hii Dame's

[@angelachikaodi3141]

I seriously have problem with this. Thanks

[@jaspernash9179]

i appreciate it ong thank you

[@sabinafinnigan8488]

Thank you! This was very helpful :)

[@AnimalsandInfotainmentTube]

Thanks a lot

[@mahazabinbuyan3060]

MIND BLOWN

[@johnnybee1776]

Thank You

[@nabz3194]

Omg after all this time I finally know how to find the sin and cos postions!!! THANK YOU!!😘😘😘😘

[@ezhilarasan9640]

Thank you

[@neoxgaming3836]

Thank you so much mam

[@franzanthony5516]

THANKS A LOT

[@markgheverpopuli7811]

THANK YOUUUUUUU!! NOW I KNOW

[@9oo9ler57]

thank you

[@cassieknight6602]

I never knew about the trick of creating two right-angled triangles by dropping a line perpendicular to one side. How is that possible? I had some pretty terrific teachers so this confirms the importance of multiple sourcing of information ... and it's clearly applicable to everything.

[@aarushisaluja8218]

Atlast something that was helpful....

[@haripriyasaravanan7900]

omg thank you i was going crazy

[@rahulkushwaha4254]

Thanking You..

[@crimsonroen6828]

Thanks

[@anupgaur174]

Ty

[@SayedIMasud]

Thanks a lot :)
Really helpful.

[@adym5349]

thanks

[@meiigyu]

you are an angel thank you

[@ramoszenrickcarloj.5983]

Thankkkkkkk youuu

[@fareezsyazreel4376]

thank you so much omg

[@zolororono6248]

Man I cannot thank you enough this lowkey has been busting my head in

[@keerthanaachar6497]

Thank you so much. It helped me a lot!

[@kiaraluciano8665]

You just saved my life

[@davidroberts1689]

Well presented, I'll use this to tutor my math students. THANKS!

[@Aleksander91]

Thanks. :)

[@funwithbrittanyofficial]

bruh like why can't they just say it like this? lol. Ok fine, I get that part but now how do we know which axis is x and y, please tell me there's a rule for that too! You're awesome, thank you!

[@cendol987]

so yeah i fucked up about half my semester in university without knowing this shit. thanks ehoweducation.

[@joshfournier2931]

Honestly, thank you so much. Im dying in college physics. Metaphorically not literally but still this was very helpful

[@cozettemostert]

like we smoke trig in highschool but trig smoking us in college. how, universe? how?

[@jamesdienow]

this video is a godsend, thank you so much for explaining it so easily

[@carlossanchez9915]

I'm here taking Dynamics for Civil Engineering, thank you for the explanation. I need to refresh these concepts.

[@ammargenji4396]

MY GOD THIS IS SO EASY WHAT THE HELL WAS I DOING😭

[@amazingworld3771]

thankyou

[@Reltoxeus]

This helped a lot, thank you! :)

[@magicalnotes5513]

Tysmmmmmm... 🥰🥰🥰🥰

[@albojosephksebastian1712]

Thkz miss

[@arijaziz692]

watching this 3 hour before my phy exam

[@ahtashamshiekh7510]

Tx a lot
Really too much important for resolution of vector...

[@kimpark1593]

I just learned this in 1st semester and now I'm here again for the second semester cause I totally forgot this portion so I'm so confused hah

[@bigdig9249]

*Missed old youtube that post like this video*

[@THESKULM]

Thank you. That was helpful :)

[@mrblack924]

Thanks for your effort. Cheers Mate!

[@priyaghosh8068]

Thankssssssssss

[@cat2642010]

Thanks for the video. It is very helpful

[@ShimonAalam]

Amazing! It was a life saver, literally :)

[@abhinandankheria7751]

Thank you very much.. finally my double is clear about it.. love you Mam❤️

[@DhanAadian]

jeez saying we slapping this upcoming physics test/exam boys

[@sarvjot495]

Great explanation. It helped a lot.

[@Tyrantscandrive]

THANK YOU SOOOO FUCKING MUCH

[@dharmasamar4690]

Thank you..Its really nice to learn ..

[@bradz9413]

thumbs up

[@AbdussalamPopoola]

OMG, this was so helpful. Thank you so much

[@sridhardevas9696]

Thank you Kristian got some idea regarding your tip.....

[@gabichirila1668]

this is so so attractive

[@elaineryan8700]

THANK YOU!!

[@carolinewinston4118]

thank you! really helped

[@WesToms]

thank you sooo much!

[@MegaAmanDude]

Great video, thank you.

[@gokuball1582]

Thankyou mam this little thing is decreasing my mark you make it crystal clear , love from india keep doing this good work and really appreciated you aimple way to make it understand

[@phikaruma7551]

Thank you, this means a lot...

[@francispasala3338]

they are a golden route

[@lukepearling6301]

How simple. University engineering student here who did not study physics (or math) in my senior high school years and I've been confused as to why cos is not always horizontal and sin always vertical. If only my lecturers told me this way to remember the rule. Thank you!

[@areaf2219]

I have never seen a Chalk like that in my entire life

[@davidmuniz5307]

Thanks for clarifying that