Please help (: thanks loves. will medal
Engineers want to design brakes that will reduce stopping distances by 10%. How would this change the equation relating speed s, friction f, and stopping distance d?
s=√30fd

Question

Please help (: thanks loves. will medal
Engineers want to design brakes that will reduce stopping distances by 10%. How would this change the equation relating speed s, friction f, and stopping distance d?
s=√30fd

aaronandyson · Answer

options given?

anonymous · Answer

20% as an error 
route 10% = 20%

anonymous · Answer

root* :P

anonymous · Answer

A. s=√27fd=3√3fd
B. s= 0.9√30fd
C. s= √0.09fd=0.3√fd
D. 0.9√fd

anonymous · Answer

Those are the multiple choice answers

anonymous · Answer

clarify them more

anonymous · Answer

the f is friction, d is distance

aaronandyson · Answer

lets say we want to go from 1d to .9d well then you would have to substitute that 1d in the equation to .9 d solve for d and then you can compare the change in equation that occurs when you change the stopping distance

anonymous · Answer

Did you get that from yahoo answers?

aaronandyson · Answer

http://openstudy.com/study#/updates/51afdcfae4b06ee3ee26d523 http://openstudy.com/study#/updates/5286f784e4b0b3376511774d this two might help

aaronandyson · Answer

https://www.studypool.com/questions/934/algebra-2

anonymous · Answer

Thank you but I am looking how to get the answer, not just the answer

aaronandyson · Answer

they have explained it :)