Asked by algebra hard

A model rocket is launched off the top of a table. The height of the rocket is given by the function, h(t) = - 4.9t2 + 9.5t + 1.2 where h(t) is the height in metres and t is the time in seconds. How long will it take for the rocket to reach the ground?

Answers

Answered by Reiny
When it reaches the ground, h(t) = 0

-4.9t^2 + 9.5t + 1.2 = 0
don't think it will factor, so let's use the formula

I got t = 2.0578 or a negative, the latter does not make sense

It will hit the ground after appr 2.06 seconds
There are no AI answers yet. The ability to request AI answers is coming soon!

Related Questions