Breakdown of Выйди ракета на эту траекторию, и мы потеряем её.
и
and
она
she / it (for a feminine noun)
мы
we
этот
this [f: эта, n: это]
Questions & Answers about Выйди ракета на эту траекторию, и мы потеряем её.
Why is выйди (an imperative verb) used instead of если ракета выйдет?
This is a stylized, more dramatic way to form a conditional clause. Using the imperative creates a sense of suddenness or high stakes. You could use the standard если (if) construction, but this imperative structure makes it sound more urgent, similar to 'Should the rocket enter...' in English.
Why is the imperative выйди paired with a third-person subject (ракета)? Don't imperatives usually command 'you'?
In normal commands, yes. However, in this specific conditional structure, the singular imperative form is used regardless of who or what the subject is. Even though ракета is a third-person noun, and even if the subject were plural, the verb remains locked in this singular imperative form.
Why is there an и before мы потеряем?
When you use an imperative verb to act as an 'if' clause, Russian requires a conjunction to connect it to the main result. This is almost always и (and). You can think of the literal structure as: 'Let the rocket enter this trajectory, AND we will lose it.'
Why does траектория change to the accusative траекторию after на?
The verb выйти combined with на indicates motion onto a path or target. Because the rocket is actively moving onto the trajectory rather than just sitting there, Russian uses the accusative case to show direction, rather than the prepositional case for static location.