`overlineR_(s)=1hati-6cos37^(@)hati-6cos 53^(@)hati`
`overlineR_(s)=1hati-4hati-3.6hati therefore vecR_(s)=-6.6hati`
`overline_(y)=3hatj+5sin 37^(@)hatj-6sin53^(@)hatj`
`overline_(y)=3hatj+3hatj-4.8hatj thereforeoverlineR_(y)=1.2hatj`
`R=sqrt(R_(x)^(2)+R_(y)^(2))=sqrt((-6.6)^(2)+(1.2)^(2))=6.7`
