What is the acceleration if a suitcase has a mass of 2 kg and a weight of 18 newtons?

The acceleration of the suitcase can be calculated using Newton's second law, which states that force equals mass times acceleration (F = ma). Since weight is a force, we can use the weight of the suitcase (18 N) as the force. Solving for acceleration, we get a = F/m = 18 N / 2 kg = 9 m/s^2. The acceleration of the suitcase is 9 m/s^2.