Question

v= 70km/h d=1000 m t=?
Dau corona!! ​

Answer 1

v = 70 km/h = 70 * 1000 m/3600 s

= 70.000m/3600 s = 19,44 m/s  (sau 175/9)

(viteza trebuie transformata in sistemul international)

v = d/t

t = d/v

t = 1000/(175/9)

t = 1000 * 9/175

t = 9000/175

t = 360/7

t = 51,42 s