splashdown occurs when h=0
max height is at t = -b/2a = 115/9.8
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^2+115t+220.
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.
1 answer
1 answer