I have a basketballinmyrighthand, a fivekilogrammedicineball.
If I holdthembothabovemyheadandthenletthemgosimultaneously, whichonewillhitthegroundfirst?
SixyearsagohereattheUniversityofSydney, I didanexperimentverysimilartothiswhere I handedoutheavyobjectand a lightobject, and I askedwhichonewouldhittheground.
First.
Tellmewhichone's gonnahitthegroundfirst.
I'm gonnaputmymoneyontheblackfella.
What's yourhearttellingyou?
Get a goodjobontheblock.
Yeah.
Okay.
It's onfastandhittheground.
Bestgonnapickthatone.
What's yourfeelingaboutthatone?
HowdoesitcomparetotheWell, it's a lotheavier, and I justfeellikethewhiteispullingitdown.
Youknow, themoreweightit's faster.
It's gonnafalltotheground.
Theforceismoreinthatbowl.
Thisoneyoucoulddefinitelytellthedifference.
I mean, I got a gym, like, sevendays, and I stillfeelit.
Well, thatonefeelslikeitcouldalmostgoup.
Where?
Thisonesplittingup.
Hisbusinessbeingkilled.
Now I thinknowyou'recomingbacktome.
I'm thinkingimpossible.
Nowwhat's makingyouthinkbasketball?
Becauseyoucomebacktohim.
I'm justsaying, like, youknow, I missed a start.
Youcancorruptme.
I mustsay I sawintheblack.
Allright, let's actuallydothisthing.
Soyouwannahookusupashighasyoucan?
Andthekeyistobe a simultaneousasyoucan.
Allright.
Youready?
Youwantcounteddown?
Three, 21 321 Wait.
Whatdoyouthinkhappened?
I feeltheblackonewentabout.
Theblackonelandedfirst.
Wait.
Wehavetogotothe O.
Wheredidyousee?
Uh, lookedlikethat?
Prettymuchlandatthesametime.
Theyhitagain.
I thoughtwasveryclosetoplace.
Thebasicinit, it's It's It's not a veryhighdistance.
Sorry.
Haven't reallyreachedtheirmaximumvelocity.
Theblackboardsdidn't reachterminalvelocity.
Wasn't enoughtimeforbefore.
I wouldbe, likeallthedifferent, verylittlelike, uh, likethatonehadtolikebreakroom.
Yeah, whatever.
Morehere, theansweris, Althoughtheforceofgravityontheblackballisgreater, ithas a greatermassandthereforegreaterinertia, soitrequiresmoreforcetoaccelerateit.