Question

Using h(t)=gt^2+v0t+h0, where g= -16, h0= initial height, v0= initial velocity, and t= time
A rocket is fired into the air from the top of a building that is 200 feet tall. The initial velocity of the rocket is 600 feet/sec. If necessary, round answers to the nearest hundredth of a unit
a) Write the height function
b) When does the rocket reach its maximum height?
c) What is the rocket's maximum height?
d) When does it hit the ground?

Answer 1

did you sub in the given data into the general formula to get
h(t) = -16t^2 + 600t + 200 ?

for b) and c), find the vertex of the parabola using the method that was taught to you

d) set -16t^2 + 600t + 200 = 0
and solve for t