A ball is thrown into the air and its position (measured in meters) is modeled by the function h(t)=-4.9t2 +60t+5   At what time does the ball stop ascending?

NASA launches a rocket at t = 0 seconds. Its height, in meters above sea-level, as a function of time is given by h(t) = – 4.9t + 325t + 346. Assuming that the rocket will splash down into the ocean, at what time does splashdown occur? (Round to the nearest tenth.) The rocket splashes down after seconds. How high above sea-level does the rocket get at its peak? (Round to the nearest tenth.) The rocket peaks at meters above sea-level.

NASA launches a rocket at t = O seconds. Its height, in meters above sea-level, as a function of time is given by h(t) = – 4.9t2 + 205t + 101. Assuming that the rocket will splash down into the ocean, at what time does splashdown occur? The rocket splashes down after seconds. How high above sea-level does the rocket get at its peak? The rocket peaks at meters above sea-level.