If the same net force is applied to a 7 kg object and a 21 kg object, then. . . . the 21 kg object accelerates three times faster than the 7 kg object.. . the 7 kg object accelerates three times faster than the 21 kg object.. . both objects accelerate at the same rate because the force is the same.. . neither object will accelerate because there is a net force on the objects. . What is the acceleration due to gravity on Mars?. . . . . . a. . . . 9.8 m/s2 . . . c. . . . 12.2 m/s 2 . . . . . b. . . . 3.7 m/s2 . . . d. . . . 0.3 m/s2 . . . The force that pulls falling objects toward Earth is call