We are asked to determine the force to acceleration an object 3 m/s^2. To do that we will use Newton's second law, which states:
Where:
We are given the following values:
We are given the mass in grams, in order to get the result in Newtons (N) we will convert the mass into kilograms. To do that we will use the following conversion factor:
Now we multiply the mass by the conversion factor in decimal form:
Now we plug in the values in the equation for the force:
Solving the operations we get:
Therefore, the force is 12x10^3 Newtons.