Respuesta :

joylilianmaina03

Answer:

speed=distance÷time

2m/s,1.5m/s,1.25m/s,0.5m/s

Explanation:

speed=distance÷time

20/10=2m/s

30/20=1.5m/s

50/40=1.25m/s

30/60=0.5m/s