Answer:
I believe the answer is A and D.
I am unsure of C.
Answer:
velocity changes over time.
d =2.55.68m and t = 11.36s
In my opinion
Explanation:
We have,
Speed of plane a is 900 km/h
Plane b is moving at a rate of 
It is required to find which plane is faster. To find which plane is faster, we need to compare their speeds.
Speed of a plane a is 900 km/h and that of plane b is 50 km/h. So, we can say that plane a is moving faster.