Question

Help meeeeeeeeeeeeee pleaseeeeeeeeeee rn rnnnn!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

help meeeeeeeeeeeeee pleaseeeeeeeeeee rn rnnnn!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
help meeeeeeeeeeeeee pleaseeeeeeeeeee rn rnnnn!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

`Answer: \boxed {1.5}`

Explanation:

The maximum height at t second after launch is the coordinate of the vertex of the parabola of the trajectory of the toy rocket

Hence,

`h(t)=-16t^2+48t+3\\\\a=-16\ \ \ \ b=48\ \ \ \ c=3\\\displaystyle\\t=(-b)/(2a) \\\\t=(-48)/(2(-16)) \\\\t=(-48)/(-32) \\\\t=(3(16))/(2(16)) \\\\t=(3)/(2) \\\\t=1.5\ seconds`