You throw a rock horizontally off a cliff with a speed of 10 m/s. after 3.1 seconds, how far were you when threw the rock?

Answer 1

The question as written is unintelligible. Correct your punctuation and grammar to make it clear just what the conditions are.

Yeah, I know it's a math question, but we have communicate with English, following established rules, if we want to convey information.