Newton's First Law of Motion: Mass and Inertia

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Did you know that if you throw a rock in space, whatever velocity it has at the moment that it leaves your hand, it will continue moving with that velocity indefinitely? That's Newton's first law. It applies to objects on earth as well, it's just that earth's atmosphere complicates matters. Get the full breakdown here!

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My teacher: let's teach nah just send link

dehnrtu

Prof Dave I commend your work on Physics alongside all other sciences espcially your diagrams of demostrations . God bless you Sir. I'm a Student of Physics and Astronomy at University of Nigeria

Maazinnocent

thank God I finally found a person who can explain this clearly so I can understand!! thank you I really appreciate it.

patriciapina

I just came back here to comment that I am really grateful to watched your videos when I self review for my board exam because it really help me a lot.

And because of that, I passed the board exam today. THANK YOU PROFESSOR DAVE 💕

bunnybear

Thank you so much for these videos! You explain things so well and you make it engaging and interesting. I can never focus well in my physics lectures and the labs are an absolute joke. Your videos are a huge help because you explain things quickly and concisely and you're enthusiastic. I have a math professor like that too and everyone loves him. Sadly, my physics professor just doesn't know how to be concise or engaging in the slightest. I wish you were teaching my class. :)

Lucky

People saying they are here for online school.

*Me who discovered this accidentaly.*

costelc

Really helpful video. Really wish you could correct the tiny mistakes right at the end - the screen behind you uses the word motion when it should be acceleration in a couple of places. Your explanation is all spot on, thank you.

rowenalevett

professor Dave's course are treasure!

liangdongzhu

Newton's first law is often overlooked when discussing rocket propulsion, especially when debunking claims that rockets won't work in space. This is often claimed by people who say rockets won't work in space because they have nothing to "push against". What rockets "push against" in space is the inertial mass of their own propellants. The propellants, as is the case with anything with mass, want to remain at their current velocity due to inertia. Therefore, when a rocket engine accelerates the propellants in one direction against their inertial mass an equal and opposite reaction force is created in the opposite direction to accelerate the rocket.

joevignoloru

You're gonna help me pass my OAT, subscribed.

HibiscusPacific

This helped me a lot for my science test tomorrow. Thank you!!

sydney.u

Thanks for explaining so well I got 100 on my test

Nightmare_Fog

Such an amazing explanation I had ever seen😊😊😊😊🙏you did wonderful job am a civil engineering student but I didn't understand what's inertia.... Mass is a quantitative measurement of an object's inertia

deepapanneerselvam

I wasn't really interested in this back wuen my teacher was explaining at but i got perfect scores.
Few years have passed and i only remember the 3rd law because i remember teaching it to my classmate.

But now, Everything is so much easier to understand that i am interested in it and i see why it's important.

Knee_Ghast