The acceleration due to gravity is the constant of variation. what is the acceleration due to gravity of a falling object? 4.9 9.8 startfraction m over s squared endfraction. 9.8 9.8 startfraction m over s squared endfraction. 10.2 10.2 startfraction m over s squared endfraction. 19.6 19.6 startfraction m over s squared endfraction.