Dynamics: What are Forces?

What's a force? No, not THE force. That's from Star Wars. I'm talking about the forces in the universe that make things move. Yes, I know Yoda moved the X-Wing with The Force. Will you quit it? We are talking about the real universe here. Fine, I guess it could be the same universe as ours, but why are there humans that speak English in a galaxy far, far away? Alright fine, go watch a Star War first and then come back to me when you want to learn some real physics.

Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience!

[jessicauseful]

I'm using the Force right now to learn physics for the first time (20 years post-high school). You have been a big help so far. May the Force be with you!

[_egg_]

Got a test on this tomorrow, wish me luck!

[akawumpus]

You've been a huge help through my college career for a while, like you followed me through o Chem, but now you're doing my physics course level.

[mguynn]

You're helping parents with kids that are distance learning so much!!! Thank you! Are there possibly any worksheets associated with your videos?

[mudassirkhalil]

best, concise as well as interesting.
Best thing about your videos is that it goes with the flow from low to high

[jaekl]

Please make more videos about physics!! straight to the point. clear explaining on key concepts..exactly what i needXD

[Alphomega]

Thanks, man. Helps during my recreational time. Love from India.

[Dreamine]

the people who dislike this are the teachers who cant teach as well as hiim

[abhijeetkumar]

“Infact contact forces that describe macroscopic motion are just manifestation of field forces described at microscopic level”....just cleared everything

[vaibhavnmete]

I like your videos. Great job. Could you explain what is G-force in a simple way and how it is calculated upon high impact?

[Plank]

So as I understand it, an applied/contact force like kicking a ball or pushing something across the table, boils down to the pushing/repulsion of electrons at the microscopic level?

[b-sapiojohnrainiels.]

all i was looking for was confirmation if force really is a vector quantity😆
but I guess 1:23 indirectly confirms it

[adityashankar]

Hey professor Dave I didn't understand what you just said at @3:00 Could you please elaborate?

[crazychickengd]

Vector: Comitting crimes with both Direction and Magnitude!

[ximelp]

Hello, Professor Dave! Great video. Do you have one about tension? I'm having trouble understanding it.

[samuelrai]

Hello professor cud u make a video on constraint forces amd alembert and so on??

[erratic_]

When ur teacher dont wanna teach so he pulls this vid up 😗✌️

[enkishub]

Man i have one doubt, what causes motion of the object, force or energy

[mayaraz]

Hi, unrelated but we've heard good things and we are DESPERATE.

A mass (m) is horizontally attached to a spring (spring constant κ) on a frictionless
surface. The mass is subjected to a forcing function F cos ωt. Plot the maximum
amplitude at steady state (x) as a function of driving frequency ω.

how do we go about this???

[stevenfrost]

That was the tiniest shopping cart I've ever seen.