The distance between the two cable cars is fixed,

It is equal to the cable car that this person rides meets the cable car that passes opposite.

Distance to the next cable car across the street.

At this point, it becomes a problem to meet the next cable car.

Meeting distance = meeting time × speed sum,

So the distance between the two cable cars is fixed, equal to 0.5× 2V.

The departure time interval is:

The distance between the two cable cars is fixed.

Namely:

0.5×2V÷V= 1 (minutes)