1. The problem statement, all variables and given/known data The Force applied to an object is equal its mass times its acceleration Assume that the ball has a mass of 40g. What is the force due to gravity acting on the ball? 2. Relevant equations F=ma 3. The attempt at a solution F=(.04)(-9.81) I get a negative answer, does that mean that the force is negative? or should I change -9.81 to 9.81?