A rocket is fired upward with an initital speed of 24.5m/s. After how many minutes does it hit teh ground?

Question

use the formula h=rt-4.9t^2

Answer 1

h= -4.9 t^2+24.5 t
h=0 for t= 0(at start) and for t = 24.5/4.9 s =5s =5/60 =1/12 min
=0.0833 min