SOLUTION: A stone is thrown directly upward from a height of 30 ft, with an initial velocity of 60 ft/sec. The height of the stone, in feet, t seconds after it has been thrown,is given by th

Question 1162061: A stone is thrown directly upward from a height of 30 ft, with an initial velocity of 60 ft/sec. The height of the stone, in feet, t seconds after it has been thrown,is given by the function s(t) = -16t^2 + 60t + 30. Based on this model, what is the stone's maximum heights? How long does it take for the stone to reach its maximum height? Answers: 86.25, 1.875, respectively

Can someone help answer the above question if the same equation is set to zero and solve for t to find how long it will take the stone to hit the ground?
Answer by ikleyn(52776)   (Show Source): You can put this solution on YOUR website!
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This problem was solved and these questions were answered under the link

https://www.algebra.com/algebra/homework/Rate-of-work-word-problems/Rate-of-work-word-problems.faq.question.451656.html

If you want to learn the subject to the level to be able solving such problems on your own, look into this group of lessons
    - Problem on a projectile moving vertically up and down
    - Problem on an arrow shot vertically upward
    - Problem on a ball thrown vertically up from the top of a tower
    - Problem on a toy rocket launched vertically up from a tall platform
in this site.

Consider these lessons as your textbook, handbook, guide, tutorials and (free of charge) home teacher.

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