Step-by-step explanation:
A train travels 14 seconds at a velocity of -50 m/s from an initial position of +700m. What is the final position?
-50 meters per second * 14 seconds = -700 meters in 14 seconds
from a initial position of +700m:
= 700m +( - 700m)
700m - 700m = 0
final position is 0.