Question 1024770
Convert all units to seconds.
{{{t=2(60)=120}}}{{{s}}}
{{{v[i]=72(1/3600)=1/50}}}{{{km/s}}}
.
.
.
{{{a=(v[f]-v[i])/t}}}
{{{a=(0-1/50)/120}}}
{{{a=-1/6000}}}{{{km/s}}}
.
.
.
{{{v[f]^2=v[i]^2+2ad}}}
{{{d=(v[f]^2-v[i]^2)/(2a)}}}
{{{d=(0-(1/50)^2)/(-2/6000)}}}
{{{d=1.2}}} {{{km}}}