Question

Echipa ALFA parcurge in 2 h. traseul A-B-D, cu o viteza medie de 3km\h , iar echipa Gamma parcurge taseul A-C-D in 3 h. Calculeaza viteza medie cu care se deplaseaaza echipa Gamma stiind ca lungimile celor doua trasee sunt egale. PLZ...URGENT

Answer 1

d=v*t
d=2*3=6km
Vgamma=d:t=6:3=2km/h

Answer 2

ALFA⇒Δt=2h ,v=3km/h;
⇒Δd=Δt·v⇒Δd=2h·3km/h⇒Δd=2·3km⇒Δd=6km;
GAMMA⇒Δt=3h ,Δd=Δd⇒Δd=6km;
⇒v=Δd/Δt⇒v=6km/3h⇒v=2km/h;