Answer:
The answer to your question is 24 cm
Step-by-step explanation:
The travel is divided into two sections:
1.- From 0 to 4 seconds
2.- From 4 to 8 seconds
In the first travel speed changes and on the second travel, speed is constant.
1.- Distance 1

a = 1 cm/s²



d = 8 cm
2.- Distance

distance = speed x time
distance = (4) x 4
distance = 16 cm
3.- Total distance
d = 8 + 16
d = 24 cm