Answer:
42 meters.
Explanation:
You use the formula for uniform acceleration: x=1/2at^2 and velocity : v=at
v=at
42=a2
a=21m/s^2
x=1/2(21)(2^2)
x=42m traveled
9.8m/s^2 acceleration is only for free fall projectile motion questions, where there is a y component. This equation is only horizontal, and thus the only accleration is horizontal.
