Question 782634
Convert {{{ 5 }}} sec to hours
{{{ 5 }}} sec x {{{ 1/60 }}} min/sec  x {{{ 1/60 }}} hrs/min =
{{{ 5 / 3600 }}} hrs
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Use {{{ d = r*t }}} with units of miles and hours
{{{ d = 540*( 5/3600 ) }}}
{{{ d = .75 }}} mi
Convert to feet
{{{ .75 }}} mi x {{{ 5280/1 }}} ft/mi = {{{ 3960 }}} ft
The plane travels 3,960 ft in 5 sec