[Vật lí 12] Hợp lực.

A

arynguyen

co t=2 suy ra dc omega=2pi va k=(omega^2)*m=4(n/m)
co van toc qua bien la 0,1pi(m/s)=A*omega suy ra a=0.05(m)
vay hop luc lon nhat se la luc dan hoi tai vi tri bien nen F=k*A=4*0.05=0.2(N)
vay la dap an (a)
co ji lien he minh nha rukawastair nick yahoo do!!!than chao!!!!!!!!!!
 
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