SOLUTION: A rocket accelerates from rest at the rate of 55 m/s^2 for 20 s. It then moves at a constant speed for 5 s after which it accelerates at -35 m/s^2 until it stops. What is the dista

Question 1110637: A rocket accelerates from rest at the rate of 55 m/s^2 for 20 s. It then moves at a constant speed for 5 s after which it accelerates at -35 m/s^2 until it stops. What is the distance travelled during the slowing down period?
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
Accelerating from rest at the rate of

for ,
the rocket would attain a speed of .
When it later decelerates with a constant

acceleration,
it takes until it stops
During that slow down period the rocket's speed decreases linearly,
with an average speed of .
During that period, travelling at that average velocity, it travels

(rounded to the nearest meter).

NOTE: I can write formulas, so if you want them ask,
but I saw no need to complicate a simple way to the solution.
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