Answer
F-35A: Yes; $a=.8\ m/s^2$
A-380: No
Work Step by Step
We see if there is enough force to raise the F-35A:
$F_g=(18,000)(9.81)=177 \ kN$
This is less than the engine's force, so we find:
$a = \frac{191,000-177,000}{18,000}=.8 \ m/s^2$
We see if there is enough force to raise the A-380:
$F_g=(560,000)(9.81)=5,493 \ kN$
There is not enough force, for this is greater than the thrust of the engine.
