posted by Michael .
A rocket is launched straight up with constant acceleration. Four seconds after liftoff, a bolt falls off the side of the rocket. The bolt hits the ground 6.40 s later.
What is the rocket's acceleration?
Figure the vertical velocity and height the bolt when it breaks off, in terms of a.
Then, using that hi, and vi, you can figure a from that equation.
hf=hi+Vi*time-1/2 g time^2 you know Vi, Hi in terms of a, and hf=0
There is a little algebra in this.