Question 870320
Max speed occurs when {{{dV/dX=0}}}
{{{dV/dX=((X^2+1)-X(2X))/(X^2+1)^2=(1-X^2)/(X^2+1)^2}}}
{{{dV/dX=0}}} when {{{1-X^2=0}}} or {{{X^2=1}}},{{{X=1}}}
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{{{S=R*X}}}
{{{S=2*1=2}}}{{{m}}}