Final answer:
The acceleration of the spacecraft is 0.00327 m/s² and the acceleration of the astronaut is 0.3913 m/s².
Step-by-step explanation:
The magnitude of the force can be calculated using Newton's second law, F = ma, where F is the force, m is the mass, and a is the acceleration.
For the spacecraft, the mass is 11,000 kg and the force is 36 N. So, to find the acceleration of the spacecraft, we can rearrange the formula to solve for a: a = F/m.
Substituting the given values, we have a = 36 N / 11,000 kg = 0.00327 m/s².
For the astronaut, the mass is 92 kg and the force is also 36 N. Using the same formula, we can find the acceleration: a = 36 N / 92 kg = 0.3913 m/s².