In an engineering test, a rocket sled is propelled into a target. The sled’s distance d in meters from the target is given by the formula d = -1.5t2 + 120, where t is the number of seconds after rocket ignition. How many seconds have passed since rocket ignition when the sled is 10 meters from the target?

Respuesta :

You're given d = 10
10 = -1.5t2 = 110
[tex] t^{2} [/tex] = 220/3
since t [tex] \geq [/tex] 0
t = [tex] \sqrt 220/3[/tex]
I apologize if this is wrong!