An rock is thrown upward from a platform that is 156 feet

Last updated: 7/18/2022

An rock is thrown upward from a platform that is 156 feet above ground at 60 feet per second. Use the projectile formula h = - 16t² + vot + ho to determine when the rock hit the ground. [Recall that vo is the initial velocity of the object and ho is the inital height of the object.] Answer: The rock will hit the ground after Note: Round any numerical responses to two decimal places. If there are multiple answers, separate them with commas.