Question 562010
{{{ 1 }}} hr x {{{ 60 }}} min/hr x {{{ 60 }}} sec/min = {{{ 3600 }}} sec
{{{ 23 }}} min x {{{ 60 }}} sec/min = {{{ 1380 }}} sec
{{{ 3600 + 1380 + 20 = 5000 }}}
Average speed = {{{ 10 / 5000 }}} km/sec
Average speed = {{{ .002 }}} km/sec x {{{ 1000 }}} m/km 
Average speed = {{{ 2 }}} m/sec