Rotational Inertia Demonstration - which is faster?

[PassivelyActive]

this is why I always laugh when guys put the biggest wheels they can on their sports cars... congradulations... you just made it slower.

[The2012Whisper]

GREAT VIDS! JUST SAW A SHOUT OUT ON THESLOWMOGUYS CHANNEL. AND IM VERY IMPRESSED. Any chance you can do a little shout out to neverlaggaming? Were just starting out and we're forcing out the vids fast. But we need to get our name out there.

[icanhazbongos]

Where are you guys? That looks like W5 in Belfast.

[destinws2]

@icanhazbongos

Alabama the Beautiful.

[elephamoose]

So if the one on the left went faster, why does the one on the right have more rotational inertia?

[IndianaJaws]

@elephamoose

rotational inertia of an object : how difficult it is to change velocity of the object. that includes the body's mass, but also how far each bit of mass is away from the axis. The farther out the object's mass is, the more force is required to change the rotation rate - the more rotational inertia the object has.

in the vid - the mass of the hoops is the same, but the weights of the right one are farther away - so it requires more effort to change the speed- more rotational inertia

[elephamoose]

@IndianaJaws Thanks! I think I was confusing inertia and momentum. Never took physics in high school.

[IndianaJaws]

@elephamoose welcome^^

[iairboy72]

@elephamoose Inertia is the amount of resistance to change; the one with less resistance to change can muster up speed easier than the one with more resistance to change.

[kkl902]

awesome example!

[mvaliente2001]

Excellent job! Thanks for the video.

[oisiaa]

This looks like an awesome science center. Where is it?

[destinws2]

@oisiaa

Birmingham, AL. "The McWane Center"

[COD4GEEK1]

lol are you at G wiz

[Mixarenan]

what's that

[blenderuser]

so in 15-20 years your kids will watch this video and say.. aaaaaaah THAT's what daddy tried to show us! :-)