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?
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.
To determine how far you were from the cliff when you threw the rock, we can use the equation for horizontal distance traveled (assuming no air resistance):
distance = speed × time
In this case, the speed is 10 m/s and the time is 3.1 seconds. Therefore, the distance can be calculated as:
distance = 10 m/s × 3.1 s = 31 m
So, you were 31 meters away from the cliff when you threw the rock.