QUESTION 18 If an object weighs 2257 N on the surface of one of the planets and the same object weighs 673 N on the surface of the Earth, the mass of the object and the acceleration due to gravity on the planet are 68.7 kg and 32.9 m/s2 O 68.7 kg and 9.80 m/s2 32.9 kg and 68.7 m/s2 O 231 kg and 32.9 m/$2