Question 136551
Given: {{{h=-16t^2+96t}}}
When does the rocket hit the ground?

What height will the rocket be when it hits the ground? {{{h=0}}}
{{{h=-16t^2+96t}}}
{{{0=-16t^2+96t}}}
{{{0 = -t^2 + 6t}}}
{{{0 = t(-t + 6)}}}
this yields t = 0, t = 6