Answer:
0.5 seconds
Step-by-step explanation:
Two rockets are launched at the same time, but from different heights.
[tex]y = -16t^2+ 150t + 5[/tex]
[tex]y = -16t^2 + 160t[/tex]
when the heights are same then y are equal. So equation both equations and solve for t
[tex]-16t^2+ 150t + 5= -16t^2+ 160t[/tex]
Add -16t^2 on both sides
[tex]+ 150t + 5=160t[/tex]
Subtract 150 t from both sides
[tex]5=10t[/tex]
Divide 10 on both sides
t=0.5 seconds
