Why do these feel heavier than normal dumbbells?

What weighs more, a kg of steel or a kg of feathers?

steel of course. birds couldn't fly if they were covered in steel

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Your mum LMAO

I thought it was just me, nice to see someone else make this observation

Steel will feel heavier because it’s concentrated

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steel ofc. because steel wheys more thann fethers.

what rubber bits?? Expound please.

A kg of feathers will be lighter because it would have like 1000x more volume than the kg of steel, therefore making more contact with the air around it, as well as having little air bubbles inside of it, making it lighter via gravitational pressure.

This dude trolling

Actually he's true, a kg of feathers would be so big, it would rest on a lot more air and face more resistance. It's like, what keeps you afloat more? A kilogram parachute of steel, or a kilogram of feathers?

See, this guy gets lifting.

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>birds couldn't fly if they were covered in steel
Checkmate (pic related).

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iron is heavier than plastic

That technically doesn't make them lighter though, just more air resistant.

that cheating

a kg of steel, because steel is heavier than feathers

What if you made feathers of steel and then weighed a kilogram of those?

No.
>That technically doesn't make them lighter though, just more air resistant.
He asked what weights more tho. On earth- kg of steel>kg of feathers. In vacuum I guess it would be the same but there's no way to know because I'm like 99% sure space is fake

The rubber is pressures and prevents them from loosening

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add some oil to them

It is the same but id rather have a kg of feathers dropped on me

Density is important

Other user here, i have two pair of dumbbells, and on one dumbbell i lost the rubber from the thingys. How can i replace it? The dumbbell is really stupid now and i avoid using it, kinda sucks.

what if they were compressed into the same form as the steel?

Why am I even bothering this is fucking stupid

Don't know, user, why does your mother look fatter than normal mothers?

>It's another episode of "retarded Americans try to use logic disregarding actual physics"

The bars are usually about 3.5 lbs. For a lot of accessory lifts that use low weights, that's pretty significant.

They're usually standard rubber washers but I don't know the size. Take the other one to the hardware store. You can usually buy like 10 for $1

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It's the opposite you retard.
A barbell that allows plates to spin will feel lighter compared to one that doesn't.
Why do you think an axel bar is more difficult to lift?

A WITCH!

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Obviously the same, because a kg is a kg.

But OP's weights have two plates a side and usually only the outside plate is labeled

*Smacks lips*
*Licks BBQ sauce off of fingers*
*Tucks smuggled weed that was in a Mexican mom's butthole into socks*
*Picks a fight with white young men playing basketball*
*Steals pop from gas station*
*Puts on overpriced mall clothing*
*Asks grandma for sum cash*
*Pulls up pants*
Hol up! Feathers are light! Steel is heavier man niqqua!
>Pic related

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this is actually a really good point

they clearly don't in yours m8. i love it when idiots call people stupid

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nice to see some other physicists on this brainlet board

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Nice bait

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>The plates rotate which increase their perceived weight
>F=mA
can you translate newton's 2nd law here to angular acceleration please, as it applies to small plates spinning and an increased perceived weight (i dunno what this means but i'm guessing you mean the force vector has an increased magnitude in some direction????). my undergrad in engineering obviously didn't prepare me for this monumental discovery, i'm just not seeing it.

Normal dumbells have entire things weight. While with this you have to pack on plates. So a 5kg plate each side will mean 10kg+smolbar while a 10kg dumbell is 10kg

dumbbells are good but i think kettlebells work better as squat plugs cos you have that handle if it gets stuck too far in (protip: if it goes too deep for your hands and you aren't flexible enough you can still use a wire/grappling hook to snag the handle then anchor it and just jump face first off a building to get it out fast)

if you think about it like a colloidial dispersion the feathers will be experiencing more collision effects from air molecules and as the feathers are smaller and higher surface are than the lump of steel they will experience these collisions more relative to gravitational effects and so the gravitational force is countered slightly because collisions are non directional. The real question is: what weighs more, a kg of steel or a kg of steel feathers with the same interfacial(surface) area as a kg of feathers? gotta control those variables. its way easier that just doing it in a vacuum anyway cos you need a synchrotron radiation source for a true vacuum and there's only one of those in my country so its in high demand.