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A-racing-car-travels-on-a-track-without-banking-ABCDEFA-ABC-is-a-circular-arc-of-radius-2R-CD-and-FA-are-straight-paths-of-length-R-and-DEF-is-a-circular-arc-of-radius-R-100-m-The-co-efficient-




Question Number 19140 by Tinkutara last updated on 05/Aug/17
A racing car travels on a track (without  banking) ABCDEFA. ABC is a circular  arc of radius 2R. CD and FA are  straight paths of length R and DEF is  a circular arc of radius R = 100 m. The  co-efficient of friction on the road is μ =  0.1. The maximum speed of the car is  50 ms^(−1) . Find the minimum time for  completing one round.
Aracingcartravelsonatrack(withoutbanking)ABCDEFA.ABCisacirculararcofradius2R.CDandFAarestraightpathsoflengthRandDEFisacirculararcofradiusR=100m.Thecoefficientoffrictionontheroadisμ=0.1.Themaximumspeedofthecaris50ms1.Findtheminimumtimeforcompletingoneround.
Commented by Tinkutara last updated on 06/Aug/17
Don′t we neglect such processes in  physics?
Dontweneglectsuchprocessesinphysics?
Commented by Tinkutara last updated on 05/Aug/17
Commented by Tinkutara last updated on 06/Aug/17
I don′t know Sir. I am reading this from  a book and it has solution in it. Should  I post it?
IdontknowSir.Iamreadingthisfromabookandithassolutioninit.ShouldIpostit?
Commented by ajfour last updated on 06/Aug/17
has it to come to stop and can i  choose starting point on my own?
hasittocometostopandcanichoosestartingpointonmyown?
Commented by ajfour last updated on 06/Aug/17
yes, post it.thanks.
yes,postit.thanks.
Commented by Tinkutara last updated on 06/Aug/17
Commented by Tinkutara last updated on 06/Aug/17
Commented by ajfour last updated on 06/Aug/17
this is even wrong, since no time  is included to change speed.
thisisevenwrong,sincenotimeisincludedtochangespeed.
Commented by ajfour last updated on 06/Aug/17
not after class X .
notafterclassX.

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