Explicación:
140 km/h × 1000m/3600s = 38,9m/s
t = 1500m /38,9m/s= 38,6s
90km/h × 1000m/3600s = 25m/s
t = 1500m/25m/s = 60s
tiempo que tardan en encontrarse
60s - 38,6 = 21,4s
distancia recorrida por auto 2
d = 38,9m/s× 21,4s= 832,46m
distancia recorrida por auto 1
d = 25m/s × 21,4s = 535m