Question 559638
{{{ 28 }}} m/sec x {{{ 3 }}} sec = {{{ 84 }}} m
{{{ 28 }}} m/sec x {{{ 10 }}} sec = {{{ 280 }}} m
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{{{ 84/5 }}}  m /  (m/car length)  = {{{ 16.8 }}} car lengths
{{{ 280/5 }}} m /  (m/car length)  = {{{ 56 }}} car lengths