eden-rose_60b9e09b3fe53
eden-rose_60b9e09b3fe53
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1) ----------------------------------------- v₁=6m /s v₂=3.25m /s t₁=t+30 d=vt v₁(t+30)=v₂t 30v₁+tv₁=tv₂ tv₁-tv₂=30v₁ t(v₁-v₂)=30v₁ t=((30v₁)/(v₁-v₂)) [t=((30v₁)/(v₁-v₂))]_{v₁=6,v₂=3.25} …