A model rocket is launched straight upward with an initial speed of 70.0 m/s. It accelerates with a constant upward acceleration of 1.00 m/s2 until its engines stop at an altitude of 190 m.(adsbygoogle = window.adsbygoogle || []).push({});

(a) What is the maximum height reached by the rocket?

m

I don't know what I am doing wrong here. I have two pages full of screw ups, haha.

I tried to find out the final velocity it hits right before it runs out of fuel and I'm stuck

Using:

[tex]x = x_0 + v_0 t + (1/2) a t^2[/tex]

I did 190 = 0 + (70)t + 1/2(1)(t^2)

I get down to 190 = 70t + .5t^2

I'm just lost so just some guidance would be nice, I know the steps I'm just making a simple error somewhere or something and I've tried for like 60 minutes, so I figured I'd post.

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# Homework Help: 1D Kinematics Again

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