Which spacecraft requires the greatest force to accelerate due to its mass?

To determine which spacecraft requires the greatest force to accelerate, we can use Newton's second law of motion, which states that force equals mass times acceleration (F = m*a). According to this law, for a given acceleration, the force required to accelerate an object is directly proportional to its mass.

The Megaship, with a mass of 10 million kilograms, has the highest mass among the options presented. This means that for any given acceleration, the force required to achieve that acceleration will be significantly greater compared to the other options, which have smaller masses.

For example, if we were to apply the same acceleration to all four types of vehicles, the Megaship would need a force that is 10 million times the acceleration, whereas the drone would only require a force that is 5 times the acceleration. Therefore, the larger the mass, the greater the force required to achieve the same level of acceleration, making the Megaship the spacecraft requiring the greatest force due to its substantial mass.