Very organized . Excellent demonstration and explanation. Thank you.
@AK-gt8zy9 жыл бұрын
Thanks so much! You are very organized with your thoughts and that helped me understand the topic :)
@onlearningcurve9 жыл бұрын
Thanks : )
@MichelleZhou5 жыл бұрын
Thank you so much for existing!
@limribing30207 жыл бұрын
Thanks for the pulling demonstration , I can imagine for the graph already!!
@iirazor10865 жыл бұрын
Thank you, you did a much better job then my physics teacher at explaining this
@tsunadegirl110 жыл бұрын
I looked at the book and cringed. That's the same book we use in my high school physics class, the one my teacher says not to use. This video helped a lot, thank you.
@onlearningcurve10 жыл бұрын
I agree with you and your teacher - this 6th edition Giancoli is not good for AP Physics 1 and 2. We just have to make do with it until our district let's us get new books.
@ashleyr2014r12 жыл бұрын
I love you twu!!!
@alexanderesparza46678 жыл бұрын
Very helpful video, thank you!
@maryamhaeri12157 жыл бұрын
thank you so much! this video was very helpful.
@xKiDDiamonDx12 жыл бұрын
great teacher really appreciate it.
@theroyalosha8 жыл бұрын
Thank u very much. I really understand
@everythinkyouthink23818 жыл бұрын
mam you are god....thankyou
@nishanxerox94359 жыл бұрын
thanks mam i understood it in a clear way
@salatshahid37528 жыл бұрын
nice ... but i didnt understand why friction at last is stable /: eventhough pressure is increasing and the surface is changing
@autumnpaul31239 жыл бұрын
Genius :) thank you so much!!
@brandon112110 жыл бұрын
Extremely helpful.
@anzatzi5 жыл бұрын
In frictionless case--isn't there force needed to accelerate the book?
@anikaitsingh81748 жыл бұрын
Thank you. A very nice video.
@Sandysan111118 жыл бұрын
Why is the max static is higher than the k friction?
@onlearningcurve7 жыл бұрын
Imagine the book and the table with bumpy surfaces. I think it may be because the two contact surfaces can be a bit closer to each other when the book is sitting on the table than when the book is sliding on the table.
@gizmo9289 жыл бұрын
5kg = 50 newtons??
@onlearningcurve9 жыл бұрын
An object with 5kg of mass weighs about 50 newtons near the surface of the Earth. However, we do not write 5kg = 50N, because mass and weight are 2 different kinds of things. Mass is, well, mass, but weight is a force. Weight is the gravitational pull an object experiences from the planet (or similar things).
@physicsworld93019 жыл бұрын
epic
@salatshahid37528 жыл бұрын
nice ... but i didnt understand why friction at last is stable /: eventhough pressure is increasing and the surface is changing
@onlearningcurve8 жыл бұрын
+SALAT SHAHID You are right to wonder about the surface condition change. Friction can be tricky. It's tricky when I set up things for the demonstration too. If I push the block down hard and then let go before pulling on it, it would likely require a bigger force to get block to move. Pushing the block down really hard makes the 2 contact surfaces a bit closer, so in a way, the contact surface condition is changed. So in order to make the demonstration more consistent, I had to make sure that the block was placed on the table gently before I started to pull on it. Once the block started to slide, even when sliding at different speeds, the distance between the blocks stay more or less a constant. Therefore the kinetic friction would stay a constant. Pulling harder horizontally on the block does not increase the pressure on the table. I.e. it does not increase the normal force between the block and the table. I hope this helps.