Final answer:
Using Newton's second law of motion, the mass of Edwin and the wheelchair is found to be 33.33 kilograms when pushed with a force of 3000 Newtons and an acceleration of 90 m/s².
Step-by-step explanation:
To find the mass of Edwin and the wheelchair, we can use Newton's second law of motion, which states that the force acting on an object is equal to the mass of the object multiplied by its acceleration (F = ma). Given that Miguel uses 3000 Newtons to push Edwin in a wheelchair, and the acceleration is 90 m/s2, we can rearrange the formula to solve for the mass (m = F/a).
The calculation would be m = 3000 N / 90 m/s2 = 33.33 kg.
Therefore, the combined mass of Edwin and the wheelchair is 33.33 kilograms.