Motors: Speed, Torque & Horsepower 

A 1075 rpm 1/3 hp a 1075 rpm 1/2 hp squirelcage blower turn how fast on each motor????????

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speed is how fast a motor rotates either with load or with no load if we are ta

After working with megajoule tables and wondering why we used decanewtons(as a weight measurement ) you make sense ,so basically horsepower is a force measurement like decanewtons?or is it like how fast you can exponentially increase momentum? or should i smoke another joint...lol

He turned hp to joules lool

praying for your poor soul

You are correct. There is a big mistake about friction forces too starting at 4:45.

About your #4. It seems like you haven´t understand this part correctly. Torque is not a measure per time, that part is correct, but power it is, so yes, more horsepower is needed to produce the same amount of torque more quickly.

?

Bubba Sparks what?

Bubba Sparks fuck the rest of the world and your heathen units of measurement

It's a shame that such advanced country does not use the holy metric system :(

You people are religious with your measurement preferences, I wouldn't mind using metric because base 10 is easier math to do but there isn't any difference in actual measurements made, it's just a different base, you can build a bridge in meters or feet and it's still the same bridge.

Yes!

why Sir? please give more info.. i appreciate

@@yosef-yosef9414 For example: "1HP = 2545 BTU, 1HP = 1,055 joules"? @ 1:31

@@daweitowalk okay, i will try to understand i will watch it. and i'll get back to you.. i wanna know

@@daweitowalk and Thanks

Gerard Aliaga Navarro 1nnd8i

For dry friction, it must be tested.

Torque is a FORCE. You don't need ANY movement (rotation) to have force.

actually, you do. if there is a force, then there is its mass x its acceleration. what you are talking about is a "net" force. and if you have a net force, you then have rotation. sorry, its the law.

torque

no... tq doesnt need rotation..... try removing a stuck lugnut.... you apply well over 800lbs of tq but cant remove it.... the law of tq requires no movement.... thank you come again

well he kinda explain right.....if you take a look in kinematic....torque is defined by force multiple by radius or in vector quantity sinus angle of r.....(if you consider the si unit well the angle will might be in radian)

NecumNaTo in one second. Otherwise its just work

NecumNaTo

The issue is the perpetual confusion of definitions of words like torque, power, work etc. They are pretty careless with word choice in this video. Learning to use their exact definitions isn't hard but it's crucial to understanding. I'm guessing you want to understand Torque and Power, right? I'm happy to help!

yes i am, plz explain?

im glad i've read the comments. are you sure about this? Thanks i'm a newbie here

i replace winding coil of my dc motor, a Thicker winding coil. due to more thicker, i only made 8 turns each pole, the dc motor ia working when no load, i can feel it's fast but when i place the remote car on the ground it can't carry load. please help me thanks

@@yosef-yosef9414 The twisting force (torque) produced by a stalled (not turning) electric motor is a direct function of how much total current is flowing around each pole - so thats the current flowing in the wire times the number of wraps that wire makes arount the pole. 1 amp through a wire with 100 turns would give the same torqe as 10 amps through a wire with 10 turns. This current will flow according to ohms law (V=I×R). As the motor turns faster, back EMF is generated, which you can think of as backwards voltage. It's as though the supply voltage were reduced, reducing the current that flows and thus, the torque produced. By re-winding the motor with thicker wire two things probably happened. 1) You reduced the resistance of each coil. 2) You reduced the number of turns on each coil. These cause several changes. Fewer turns means two things: back emf is weak and so no-load speed is high. Also more current will need to flow through the wire to create the same torque. Well the lower resistance should cause more current through the wire, but since you are probably powering the motor with a battery, the battery may be reaching limits of how much current it can provide (bateries have "internal resistance") Basically you moved the rpm for best efficiency way higher, making it more inefficient when stalled or turning slow. The motor you have now could maybe perform the same as before if it was mated to a much higher ratio gearbox. I hope this is making some sense.

@@drienkm Wow thanks Sir for your reply i appreciate that... i will try to comprehend your reply i'm not native english speaker. wait. Thanks☺️👌👍

If they teach you physics then they will teach you this. This is the basics of classical mechanics. I learnt all this at school.

Depends where you live I suppose. For GCSE's this isn't needed so they don't teach it in physics

exactly! fuck that!

Pretty much everybody in the United States, and the rest of the anglosphere. In other words, any of the countries that actually matter...

People who put men on the moon.

What? Just because you don't know how to use them??

@@gregisbased5205 Hahaha. BOOM.

I'm trying to find a video using the metric system. like, what ALL (almost) world uses you know?...

Force X Distance