Question

O rezolvare la ex asta,punctele a),b),c)???​

Answer 1

Răspuns:

a) 1000÷120=8,3 m/s

b) 340×3,6=1 224 km/h

c)300÷60=5 m/s

Answer 2

Răspuns:

viteza = distanta : timp

v = d / t

a)  v = d / t

    d = 1000 m

    t = 120 s

    v = 1000 m : 120 s = 8,33 m/s

b) 340 m/s = 340 x 3600 = 1 224 000 m /ora = 1224 km/h  

       1 h = 3600 secunde

c) d = 300 m

    t = 60 s

v = d : t = 300 m : 60 s = 5 m/s