Mechanical Energy - Basic Overview

[@TheOrganicChemistryTutor]

Work and Energy - Free Formula Sheet: bit.ly/408Zp51
Full 1 Hour Video - Conservation of Energy: www.patreon.com/MathScienceTutor
Direct Link to The Full Video on Patreon: bit.ly/3vFF9r4
More Physics PDF Worksheets: www.video-tutor.net/physics-basic-introduction.html

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my teacher is really bad at teaching and i couldn’t understand anything, your videos saved me

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[@Sama.Mutaz08]

Thanks for your hard work I really understood it finally

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[@copernicus99]

Great video. In the last scenario, if the block were elevated at a constant velocity against gravity, would the work done on the block depend on the speed with which it is elevated?

[@efosckoefoscko6627]

Please do laws of chemical composition, especially the law of reciprocal proportions, thanks.

[@mutalebyounko8441]

Hey dr , i have a Q...
The brain remains hanging in the cerebrospinal liquid because its apparent weight = the buoyant
✅️or❌️ ??

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Thank You

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What is the name of this person ?

[@elifnas8257]

I dont understand, isn’t distance = v . t ?? Why did you add extra stuff on the second question???

[@gub2865]

The distance is already given in the second question which is 700 m. The formula you are referring to is dx = v . t which is in the x-coordinate and we are dealing with the y-coordinate (being height). I hope this helped and sorry this is 3 weeks late for you 😅😅Please reply if you still do not understand it!

[@killua_zoldyck3437]

​i don't understand what is the diffrence between the distance in x-coodiate and the distance in y-coordinate can u explain more ? But i know the formula that he mentioned in video , we have studied it at school and it is one of "Laws of movement" @@gub2865

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[@katekanM4]

Sir... I would like to send u a question

[@chiragshah1488]

@TheOrganicChemistryTutor
the problem #2 clarifies lot of things. thanks for that.
I have only one question where I can not wrap my mind. appreciate your help.
When I am throwing a ball vertically up, we always consider some initial velocity as soon as the ball leaves my hand.
but in this problem #2 when the object is lifted by the force of 500N, we consider the initial velocity of zero.
why is that ? what is the rational behind it ?

[@kobalt7725]

I think it has something to do with the word choice.
a) Ball "leaves" your hand
1. It means that the ball is in a state of motion and is no longer at "rest",
2. You started measuring it at the state when it is already moving.
b)An upward tension force is used to lift a block "at rest"
1. It means that the block is at "rest"
2. You started measuring it at the state when it is at rest.

[@mike_mediatv]

Question 1
Mass is not given in the question?

[@ke.aellee]

i think because there's already a speed? we don't need mass to find the mechanical energy, we need speed, therefore i think if the speed is given, we just directly apply it to the formula.

[@lt6986]

I have a question. Why is "potential energy" always thought of as position above earths surface (or a massive object with gravity eg mars)? Can't there be other types of "potential energy" that is not necessarily dependent on gravity such as energy stored in the elasticity of an object? Example blowing up a balloon, will cause the air to want to escape and equalize to the atmospheric pressure. If the energy stored in the elasticity is not "potential energy" what would you call it?
Thank you
An EE student lol

[@TheOrganicChemistryTutor]

I have a video coming up that discusses the different types of potential energy

[@lt6986]

@@TheOrganicChemistryTutor ok awesome, keep up the great work

[@HeliosBeats]

Potential energy isn't always thought of in that way, it just happens that often in physics examples, when regular objects are involved and you want to consider their potential energy (if any), gravitational potential energy applies since gravity is always acting on everything. There can be other kinds as you said and depending on the situation, you would consider those instead, like if you're working with a spring that's compressed and holding potential energy

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@@TheOrganicChemistryTutor pls about conservation of energy and energy lost in friction

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Me trying to create a power system for my story off of existing energy. ;)

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First comment

[@The.Org.che.]

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