Question 990309
[ 20 revs / min ] x [ 1 min / 60 sec ] = {{{ 1/3 }}} revs/sec
and
[ 1/3 revs/sec ] x [ 5 sec ] = {{{ 5/3 }}} revs
and
[ {{{ 2*pi }}} radians / rev ] x [ 5/3 rev ] = {{{ ( 10/3 )*pi }}} radians