1. The problem statement, all variables and given/known data A rock of mass 32 kg accidentally breaks loose from the edge of a cliff and falls straight down. The magnitude of the air resistance that opposes its downward motion is 242 N. What is the magnitude of the acceleration of the rock? 2. Relevant equations F=ma (?) 3. The attempt at a solution I just did 242 N/32 kg and thought that was good but apparently that's not right?