Question

2. Distanta strabatuta de o masina ce se deplaseaza cu viteza v= 18 m/s timp de At = 35 min are
valoarea:
a) 630 m
b) 37,8 km
c) 63 km
d) 378 m
​

Answer 1

dx=v×dt

dt=35min=35×60=2100s

dx=18×2100=37800m=37.8km

Raspuns: b) 37.8km

Answer 2

Răspuns:

v=Δd/Δt

Δd=vΔt

35 min= 35*60= 2100 s

Δd=18*2100=37800 m=37,8 km