Question

Efectuati: 144 km/h=?m/s 180 dam/ min=? m/s

Answer 1

144 km/h

1 km=1000 m

1 h=3600 secunde

144×1000÷3600

=40 m/s

180 dam/min

1 dam=10 m

1 min=60 secunde

180×10÷60

=30 m/s