Answer
The force will be doubled.
Step-by-step explanation
Using Newton Law II,
F = ma
So it can be seen in the formula that force is directly proportional to mass and acceleration.
if mass is doubled ---> force will be doubled, keeping acceleration constant.
Similarly,
if acceleration is doubled ---? force is will be doubled, keeping mass constant.
It is assumed that there is no friction, the object is in the air with no air resistance.