Posted by Rick on .
Formula given: H=7+70t16tsquared. Ball kicked straight up from a height of 7 feet. Ball travels 70 feet per second. How high is the ball after 3 seconds (t)?

algebra 
drwls,
Plug in 3.0 for t in your H vs. t equation. You should not have a problem doing that.

algebra 
drwls,
The equation you are given already takes into account the speed and direction that the ball was kicked, and the acceleration of gravity. All you have to do is substitute 3 for t and "turn the crank".