Vcp= S/ t
S=S1+S2= 190+75 = 265
T= t1+t2= 4+1= 5
Vcp= 265/5 =53 км/ч
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Vcp= S/ t
S=S1+S2= 190+75 = 265
T= t1+t2= 4+1= 5
Vcp= 265/5 =53 км/ч