Answer
a. 1 m/$s^{2}$
Work Step by Step
In this example, both the force and the mass is doubled (4 rubber bands instead of 2 and twice the mass).
Using the equation F = ma and solving for acceleration, you would get $\frac{2F}{2m} = a$
The two effects cancel and the acceleration is unchanged. The acceleration is equal to 2 m/$s^{2}$.
