1. Rank the following from largest mass to smallest mass. Gravity on the moon = 1.6 m/s^2 Gravity on Mars = 3.7 m/s^2 a) 1 kg object on earth b) 2.75 lbm object on the moon c) 1.25 lbf object on the moon d) 15 N object on earth e) 15 N object on Mars