aAn=aA.cos60度=ω*^2.OzA --->ω^2=aA.cos60度/OzA
aAt=aA.sin60度=ε(OzA/2) --->ε=aA.sin60度/(OzA/2)
aBt=ε(OzA/2)=aA(1/2)(√3/2)=10√3/4
aBn=ω^2(OzA/2)=(aA.cos60度/OzA)(OzA/2)=10/4
aB=√(aBt^2+aBn^2)=5m/s^2
与OzB夹角 coaα=aBt/aB=√3/2 ，α=30度
aAt=aA.sin60度=ε(OzA/2) --->ε=aA.sin60度/(OzA/2)
aBt=ε(OzA/2)=aA(1/2)(√3/2)=10√3/4
aBn=ω^2(OzA/2)=(aA.cos60度/OzA)(OzA/2)=10/4
aB=√(aBt^2+aBn^2)=5m/s^2
与OzB夹角 coaα=aBt/aB=√3/2 ，α=30度
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