Question

Un biciclist a parcurs 10 km in 30 de minute si 5 km in 20 de minute . Cu ce viteza media a mers? Rezolvarea pls mult

Answer 1

Răspuns:

V medie = (v1+v2 ) : 2

v1= 10000m :1800s = 5,55

v2=5000m : 1200s =4,16

V medie = (5,55+ 4,16 ):2 =4,85 m/s