i dont want a numeric answer. i want to know the steps to solve. What was the la

Question

i dont want a numeric answer. i want to know the steps to solve. What was the launch speed of the rocket?Assume the propellant is burned very quickly at blastoff. What was the launch speed of the rocket?Assume the propellant is burned very quickly at blastoff. How high will the rocket go? my initial approach was to get average velocity and assume itto be just be V because the time increment was small (0.15s) over ashort distance, and solve for acceleration. then once i have thosetwo i would solve for Vo. However, i dont know what to do with the8.0m above the ground or if Vo really is the speed theyre lookingfor. I'm having errors in logic.

Explanation / Answer

After the rocket was launched, it has only acceleration of g whichis -9.8m/s2. Let's set the speed when the rocket reachedthe top of the sill is Vi, top of the window is Vf. We haveVf2-Vi2=2gS, Vf=Vi+gt. From these two we canget the Vi and Vf. Use the equations again for the 8m distance ofthe sill you can get your Vo.

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