Rocket sled tests reached accelerations of 45 g. Roughly what acceleration is that in SI units?

1. Accelerations are often quoted as multiples of the acceleration due to gravity. 2. On Earth that acceleration is 9.80 m/s^2. 3. Substitute the values: 45 x 9.80 m/s^2. 4. This gives approximately 440 m/s^2. 5. Quoting 45 m/s^2 treats the multiple as if it were already in SI units. _Source: OpenStax College Physics (CC BY 4.0), Ch 4 "Dynamics: Force and Newton's Laws of Motion", section 4.3 Newton's Second Law of Motion: Concept of a System_