A falling stone is at a certain instant 90 feet above the ground. Two seconds later it is only 10 feet above the ground. If it was thrown down with an initial speed of 5 feet per second, from what height was it thrown?
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Home » Mathematics » A falling stone is at a certain instant 90 feet above the ground. Two seconds later it is only 10 feet above the ground. If it was thrown down with an initial speed of 5 feet per second, from what height was it thrown?