Respuesta :

mathstudent55

Answer:

a = 0.139 m/s²

Step-by-step explanation:

a = (v_2 - v_1)/t

a = (45 km/h - 25 km/h)/(40 s)

a = (20 km/h) / (40 s) × (1000 m)/(1 km) × (1 h)/(3600 s)

a = 0.139 m/s²