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No my original answer is correct ...
Given ....
Kinetic Energy = 1/2mv^2
and given
Potential Energy = Force X Distance
you get the object currently has maximum Kinetic Energy at it's start veloctiy ...
and minimum kinetic energy when it reaches Zero velocity - which is it's maximum potential energy ...
do the algebra ... and you get the correct answer ...
Wow ...it's been a long time since I did one of these ...
See what becoming a "sex webmaster" does to your brain ...
The only vector I think about now is in - and - out.
Sorry boys ...
My answer/s depending on you definition of "brakes" is correct ...
You do not need graphs and vector analysis or any type of "series" calculation ...
and this really is a high school question ...
What happened to those babes in high school ..
Dad@
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