进Twovectorsaandbhavethecomponents,inmetersa（x）=3.2a（y）=1.6b（x）=0.50b（y）=4.51.findtheanglebetweenthedirectionsofaandb.Therearetwovectorsinthexyplanethatareperpendiculartoaandhaveamagnitudeof5.0

　　进

　　Twovectorsaandbhavethecomponents,inmeters

　　a（x）=3.2a（y）=1.6b（x）=0.50b（y）=4.5

　　1.findtheanglebetweenthedirectionsofaandb.

　　Therearetwovectorsinthexyplanethatare

　　perpendiculartoaandhaveamagnitudeof5.0m.One,

　　vectorc,hasapositivexcomponentandtheother,

　　vectord,anegativexcomponent.Whatare2.thex

　　componentand3.theycomponentofc,and4.thex

　　componentand5.theycomponentofvector

　　我看不太懂=