Thank you. You have no idea how much of a service this is. Since my classes have moved online, my professor has essentially quit teaching and basically expects students to learn by reading the textbook alone. I am only passing Physics because of you.
Newton's third law states that for every action, there is an equal and opposite reaction. When an object pushed down on a suface (due to its weight) the surface will push back with and equal and oppositely directed force
@@MichelvanBiezen But that's wrong, weight and normal reaction aren't action reactions..The earth pulls the object and the object pulls the earth -action reaction number 1. The object applies a contact force(normal reaction) on the surface and the surface applies a contact force on the object -action reaction number 2. If according to you weight and normal reaction are action reactions they should always be equal but that's not the case , normal reaction can vary. But for this equilibrium it just so happens that normal reaction and weight are equal .Also action and reaction never act on the same body
Two masses are suspended as shown below. Calculate the tension in the string between the masses if: a) the masses are accelerating upwards at 2.8 m/s/s b) the masses are acceleration downwards at 2.8 m/s/s | ------------- | 5.25kg| ------------- | | ------------- | 3.21kg| -------------
That's wonderful i am really amazed and understood the concepts from your videos.I hope these lectures will take me to the heights of glory .MAY GOD BLESS U👍👍✌✌
That is the concept of a "free body diagram". We should be able to isolate any part of a system and then consider the forces on each of those parts. The forces must then be consistent.
The ultimate mathematical definition of what is BALANCED inertia/INERTIAL RESISTANCE is F=ma AND E=MC2 (ON/IN BALANCE): UNDERSTANDING WEIGHT AS BALANCED AND INTERACTIVE INERTIA/INERTIAL RESISTANCE: Define “mass”. You cannot. BALANCED inertia/INERTIAL RESISTANCE is fundamental. Weight ultimately pertains to and involves what is BALANCED inertia/INERTIAL RESISTANCE. E=mc² is F=ma. Energy has/involves GRAVITY, AND ENERGY has/involves BALANCED inertia/INERTIAL RESISTANCE. “Mass"/ENERGY IS GRAVITY. (Weight necessarily pertains to distance in/of SPACE.) Gravity AND weight are characterized by electromagnetic/gravitational interaction. NOTE: “Inertia" is not properly defined AND understood. The new/correct designation is inertia/INERTIAL RESISTANCE. By Frank DiMeglio
The pair of Normal Force and Force of gravity on the box do NOT demonstrate Newton's 3rd Law. Newton's 3rd Law force pairs do NOT act on the same object, but different objects. If object A exerts a force on object B, then object B exerts an equal force back on object A in the opposite direction. If you put the box on a table, then there would be Normal force on the box from the surface of the table, and the Newton's 3rd Law force pair would be a Normal force on the table from the box. The force of gravity acting on the box is from the Earth (b/c it is so massive), and the Newton's 3rd Law force pair would be a Force of gravity acting on the Earth from the box pulling the Earth towards the box (as weird as that sounds).
The force acting on the box from the table and from the earth are equivalent both in magnitude and direction and the table acts as an extension of Earth. So they are the same force.
@@bardiashahrestani8564 UNDERSTANDING WEIGHT, MOTION, FORCE/energy, TIME, INSTANTANEITY, inertia/INERTIAL RESISTANCE, GRAVITY, space, DISTANCE, AND ELECTROMAGNETISM/energy (ON BALANCE): SPACE cannot exist without inertia/INERTIAL RESISTANCE. Ultimately, weight is a matter of BALANCED inertia/INERTIAL RESISTANCE pursuant to F=ma AND E=mc2. Gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE. Inertia/INERTIAL RESISTANCE is proportional to (or BALANCED with/as) GRAVITATIONAL force/ENERGY. Gravity, as it has been written, is an interaction. This NECESSARILY represents, INVOLVES, AND DESCRIBES what is possible/potential AND actual IN BALANCE. ELECTROMAGNETISM/energy is (CLEARLY AND NECESSARILY) proven to be gravity (IN/ON BALANCE). The ultimate mathematical unification of physics/physical experience combines, BALANCES, AND INCLUDES opposites. Gravity AND ELECTROMAGNETISM/energy are CLEARLY linked AND BALANCED opposites ON BALANCE, as ELECTROMAGNETISM/energy is gravity ON/IN BALANCE. Consider hardness, impact, pressure, AND FORCE/energy IN BALANCE, as BALANCED inertia/INERTIAL RESISTANCE is fundamental. Compare what is the man (THE EYE) who actually IS IN what is outer “space” WITH the man (AND THE EYE) who IS standing on what is THE EARTH/ground ON BALANCE. Think about TIME (AND time dilation) on balance, as the stars AND PLANETS are POINTS in the night sky on balance. So, consider what is THE SUN on balance. Weight pertains to distance in/of SPACE. By Frank DiMeglio
@@frankdimeglio8216 I don't know what you are trying to tell me, but judging by your first sentence ("SPACE cannot exist without inertia/INERTIAL RESISTANCE.") I can tell you would benefit from a course in topology.
Sir sorry I have a question. How much force will a trampoline have to supply to accelerate a gymnast straight up with 7.5 m/s^2. I saw two answers; one is just F = ma and the other is m (a + g) which is ma + mg. I think the second answer makes more sense...
+mostakim rabbi This is a case where the predicted number of videos planned didn't match the actual. I had forgotten about the mismatch. Since this is a popular topic, I'll plan on adding a few more examples in this playlist.
Thank you. You have no idea how much of a service this is. Since my classes have moved online, my professor has essentially quit teaching and basically expects students to learn by reading the textbook alone. I am only passing Physics because of you.
It is good to know our videos are useful to students. Hang in there.
I don't know why my teacher is not unemployed yet.
you are great.
Thank you so much! You just simplified every word that came out of my professor's mouth.
Every example you give is exactly my hw problems ! :)
Sir at 1:47 when you say newtons third law, that the normal force arises as a reaction to the weight downwards isnt that wrong
Newton's third law states that for every action, there is an equal and opposite reaction. When an object pushed down on a suface (due to its weight) the surface will push back with and equal and oppositely directed force
@@MichelvanBiezen But that's wrong, weight and normal reaction aren't action reactions..The earth pulls the object and the object pulls the earth -action reaction number 1. The object applies a contact force(normal reaction) on the surface and the surface applies a contact force on the object -action reaction number 2.
If according to you weight and normal reaction are action reactions they should always be equal but that's not the case , normal reaction can vary. But for this equilibrium it just so happens that normal reaction and weight are equal .Also action and reaction never act on the same body
Two masses are suspended as shown below. Calculate the tension in the string between
the masses if:
a) the masses are accelerating upwards at 2.8 m/s/s
b) the masses are acceleration downwards at 2.8 m/s/s
|
-------------
| 5.25kg|
-------------
|
|
-------------
| 3.21kg|
-------------
T = mg +/- ma (+ when accelerating upward) (- when accelerating downward). For the top string add both masses together.
Tyty. Learning is awesome ❤
Our key goal was to provide a place for students to get help and to get the viewers excited about learning. Based on your comment we have succeeded. 🙂
That's wonderful i am really amazed and understood the concepts from your videos.I hope these lectures will take me to the heights of glory .MAY GOD BLESS U👍👍✌✌
Hi Mr. Biezen. I didn't understand why you seperated a system into 2 parts, i mean why we investigated hook and box differently.
That is the concept of a "free body diagram". We should be able to isolate any part of a system and then consider the forces on each of those parts. The forces must then be consistent.
@@MichelvanBiezen thank you so much
Thank you so much Sir, for your wonderful efforts ❤😊
You are welcome. Glad you found our videos. 🙂
The ultimate mathematical definition of what is BALANCED inertia/INERTIAL RESISTANCE is F=ma AND E=MC2 (ON/IN BALANCE):
UNDERSTANDING WEIGHT AS BALANCED AND INTERACTIVE INERTIA/INERTIAL RESISTANCE:
Define “mass”. You cannot. BALANCED inertia/INERTIAL RESISTANCE is fundamental. Weight ultimately pertains to and involves what is BALANCED inertia/INERTIAL RESISTANCE. E=mc² is F=ma. Energy has/involves GRAVITY, AND ENERGY has/involves BALANCED inertia/INERTIAL RESISTANCE. “Mass"/ENERGY IS GRAVITY. (Weight necessarily pertains to distance in/of SPACE.) Gravity AND weight are characterized by electromagnetic/gravitational interaction. NOTE: “Inertia" is not properly defined AND understood. The new/correct designation is inertia/INERTIAL RESISTANCE.
By Frank DiMeglio
U r genius sir... I like your video
thank you so much sir you made things so much easy
Happy to help
The pair of Normal Force and Force of gravity on the box do NOT demonstrate Newton's 3rd Law. Newton's 3rd Law force pairs do NOT act on the same object, but different objects. If object A exerts a force on object B, then object B exerts an equal force back on object A in the opposite direction. If you put the box on a table, then there would be Normal force on the box from the surface of the table, and the Newton's 3rd Law force pair would be a Normal force on the table from the box. The force of gravity acting on the box is from the Earth (b/c it is so massive), and the Newton's 3rd Law force pair would be a Force of gravity acting on the Earth from the box pulling the Earth towards the box (as weird as that sounds).
It indirectly is. The object exerts force on the ground due to gravity, and the ground reacts
The force acting on the box from the table and from the earth are equivalent both in magnitude and direction and the table acts as an extension of Earth. So they are the same force.
@@bardiashahrestani8564 UNDERSTANDING WEIGHT, MOTION, FORCE/energy, TIME, INSTANTANEITY, inertia/INERTIAL RESISTANCE, GRAVITY, space, DISTANCE, AND ELECTROMAGNETISM/energy (ON BALANCE):
SPACE cannot exist without inertia/INERTIAL RESISTANCE. Ultimately, weight is a matter of BALANCED inertia/INERTIAL RESISTANCE pursuant to F=ma AND E=mc2. Gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE. Inertia/INERTIAL RESISTANCE is proportional to (or BALANCED with/as) GRAVITATIONAL force/ENERGY. Gravity, as it has been written, is an interaction. This NECESSARILY represents, INVOLVES, AND DESCRIBES what is possible/potential AND actual IN BALANCE. ELECTROMAGNETISM/energy is (CLEARLY AND NECESSARILY) proven to be gravity (IN/ON BALANCE). The ultimate mathematical unification of physics/physical experience combines, BALANCES, AND INCLUDES opposites. Gravity AND ELECTROMAGNETISM/energy are CLEARLY linked AND BALANCED opposites ON BALANCE, as ELECTROMAGNETISM/energy is gravity ON/IN BALANCE. Consider hardness, impact, pressure, AND FORCE/energy IN BALANCE, as BALANCED inertia/INERTIAL RESISTANCE is fundamental. Compare what is the man (THE EYE) who actually IS IN what is outer “space” WITH the man (AND THE EYE) who IS standing on what is THE EARTH/ground ON BALANCE. Think about TIME (AND time dilation) on balance, as the stars AND PLANETS are POINTS in the night sky on balance. So, consider what is THE SUN on balance. Weight pertains to distance in/of SPACE.
By Frank DiMeglio
@@frankdimeglio8216 I don't know what you are trying to tell me, but judging by your first sentence ("SPACE cannot exist without inertia/INERTIAL RESISTANCE.") I can tell you would benefit from a course in topology.
can please make the detailed videos on all subjects of mechanical engineering
We have covered many topics already. Are there any specific topics you would like to see?
Four bar mechanism and its inversions
We have added it to the list. (Don't know when we can get to it). Thank you
Sir sorry I have a question. How much force will a trampoline have to supply to accelerate a gymnast straight up with 7.5 m/s^2. I saw two answers; one is just F = ma and the other is m (a + g) which is ma + mg. I think the second answer makes more sense...
The second answer is correct.
@@MichelvanBiezen Okay thank you!!
You are Amazing!!
So if μ =0 , Ffr=0 then the small m is able to take down the big M......independent of how much is the magnitude of m and M....is it correct?
Theoretically, yes.
N and mg are not a result of Newton's 3rd law.
The weight of the object resting on the table results in the table pushing back with an equal but opposite force.
genius guy
sir when will u upload videos 18,19 and 20 ?
+mostakim rabbi This is a case where the predicted number of videos planned didn't match the actual. I had forgotten about the mismatch. Since this is a popular topic, I'll plan on adding a few more examples in this playlist.
you just save my ass off, sir.
sir videos 14 to 19 ? :)
+mostakim rabbi For those you have to go to the mechanical engineering playlists.
genius guy