Which of the following is NOT a method used to shift the center of gravity (CG) of a rocket forward?

To understand why using a larger motor is not a method to shift the center of gravity (CG) of a rocket forward, it's essential to first grasp how CG is influenced by the rocket's components and configuration.

The center of gravity is the point where the weight of the rocket is balanced. To shift this point forward, you need to either add weight towards the nose of the rocket or alter the structure. Adding weight to the nose is a direct method and effectively moves the CG forward. Making the rocket longer can also help in shifting the CG forward, especially if the additional length is biased towards the nose.

In contrast, using a larger motor tends to alter the mass distribution of the rocket without necessarily affecting the position of the CG in a forward direction. Larger motors are typically heavier and mounted closer to the rear of the rocket, which can actually shift the CG backward or keep it in the same position depending on other design factors. Moreover, simply increasing the motor size does not work in a straightforward way to adjust the CG; it would depend on the entire design and configuration of the rocket.

Using a smaller or lighter motor, on the other hand, could help shift the CG forward if it allows for additional weight to be added to the nose or alters