If the net force acting on an objects doubles, how will the objects acceleration be affected?

The object acceleration also doubles.

Explanation:

Force is a product of mass of an object and its acceleration.

i.e Force = Mass x Acceleration

Let assume for an object

Force applied = ? (unknown value)

Mass of object = K

Acceleration = N

Then, Force = Mass x Acceleration

Force = K x N

Force = KN

However, if the net force is doubled (i.e Force becomes 2KN from 2 x KN), find acceleration

Again, Force = Mass x Acceleration

2KN = K x ?

? = 2KN/K

? = 2N

Now, acceleration is 2N which indicates that it has also doubled. (since it was N before)

Thus, if the net force acting on an object doubles, the object acceleration also doubles.