Question

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+214t+248.
a. Assuming that the rocket will splash down into the ocean, at what time does splashdown occur? (Round answer to 2 decimal places)
b. How high above sea level does the rocket get at its peak? (Round answer to 2 decimal places)

Answer 1

For (a), set h=0 and find t (remember that t>0).
For (b), find the max pt of this curve. To do this, you would first need to set d[h(t)]/d(t) = 0, then find t and substitute this value of t into the original equation.

Answer 2

yup what he said

Answer 3

@Princezz : Thanks :)

Answer 4

no problem smart one ;p