1. The problem statement, all variables and given/known data You drill a narrow hole through the center of the earth and drop a ball of mass m into it. Describe its motion qualitatively. 2. Relevant equations F=-G*M*m/r^2 3. The attempt at a solution I was thinking that the ball would fall toward the center of the earth and then stop at the center since there would be no more acceleration due to gravity at the center of the earth. Would this be right?