Can anyone explain to me please how this problem is solved ?
Two ways, take your pick.
Set v(t) = 35, then use the quadratic formula. OR
set t = each of the possible answers, which is closest to 35?
Well this is basically what i have done But im not sure why im getting to positive values for t ?
I would like to :
Please feel free to tell me if the quadratic equation i used is wrong:-
I got qf=
Is the function in matlab defined as:
Ax^2 +bx + c
Ax^2 -bx +c
Anyone please ? I have to submit this in 2 days please help...
Found it finally :
This line basically i dont understand:-
Why minus ? I ued trial and error so i dont really know how i got it. May anyone explain please ?
In addition to what i posted:
Ok now i can see i figured out the answer But what does not makes sense to me is that the velocity 35m/s is obtained twice between 18 & 22 seconds , 22 & 24 seconds. ! So theoretically i should be having 2 answers. Is there a Physical meaning of why im having one answer ?
Anyone please help me submission is tommrow
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