we know that
volume of the cylinder =
in this problem

Volume=
units³
solve for h

therefore
the answer is
the height of the cylinder is 
1.)
Velocity is in m/s, and acceleration is in m/s^2 like you said. Because of this, we can calculate this by dividing the speed by the time it took to get to that speed.
(20 meters/second) / 10 seconds = 2 meters/ second^2
2.)
Same thing with the first one.
(100 meters/second) / 4 seconds = 25 meters / seconds^2
Answer:
A) 1/6 & 1/12 (with borders) 1/3 & 1/6 (without borders)
B) 1/4 & 1/12 (with borders) 1/2 & 1/6 (without borders)
C) 1/4 & 1/4 (with borders) 1/2 & 1/2 (without borders)
Step-by-step explanation:
26/100 or simplified to 13/50