Homework Help: Physics

Posted by Dakota on Friday, October 21, 2011 at 5:34pm.

You shoot a rock with a wrist-rocket straight up, it takes 6 seconds for it to come back down (IGNORE THE HEIGHT YOU SHOT IT FROM.) How high did the rock go? what was the rock's speed initially going up (V1)?
How fast is it traveling when it hits the ground on the way down?

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