The value of the gravitational acceleration g decreases with elevation from 9.807 m/s2 at sea level to 9.777 m/s2 at an altitude of 13,000 m, where large passenger planes cruise. determine the percent reduction in the weight of an airplane cruising at 13,000 m relative to its weight at sea level. the percent reduction in the weight of an airplane cruising at 13,000 m relative to its weight at sea level is %.