Question

Un corp isi mareste viteza de la 2 m/s la 14.4 km/h in 10 secunde are acceleratia:
a. 0.4 m/s^2
b. 1 m/s^2
c. 0.2 m/s^2
d. 0 m/s^2

Answer 1

Răspuns:

c) 0.2 m/s²

Explicație:

Salut !

14.4km/h = 14000m/3600s = 4m/s

a = (v₂ - v₁)/t

= (4m/s - 2m/s)/10s

= (2m/s)/10s

= 0.2 m/s²

Bafta !