of tion t of estion A rocket is fired vertically upward from the ground. The distances in feet that the rocket travels f

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Of Tion T Of Estion A Rocket Is Fired Vertically Upward From The Ground The Distances In Feet That The Rocket Travels F 1 (45.54 KiB) Viewed 43 times

of tion t of estion A rocket is fired vertically upward from the ground. The distances in feet that the rocket travels from the ground after t seconds is given by s(t) = -12t2 + 457t. (a) Find the velocity of the rocket 7 seconds after being fired. 289 feet/sec (b) Find the acceleration of the rocket 7 seconds after being fired -24 feet/sec² A ball is thrown downward with a speed of 12 ft/s from the top of a 144-foot-tall building. After t seconds, its height above the ground is given by s(t) = -24t²-12t+144. (a) Determine how long it takes for the ball to hit the ground. sec (b) Determine the velocity of the ball when it hits the ground. ft/sec