Benjamin threw a rock straight up from a cliff that was 60 ft above the water. if the height of the rock h, in feet, after t seconds is given by the equation h=-16t^2+68t +60, how long will it take for the rock to hit the water?

Ask your question to the AI advisor

Ai-bot is an expert in any field and is the perfect companion for reliable and useful answers and advice on a variety of topics, including science, history, technology, art, sports, health, culture and more.