Why wouldn't a person weigh as much on the moon as on earth? a. the moon makes a person weightless. b. the moon has less mass than the earth. c. the earth supports a person's weight. d. there is no atmosphere on the moon.

The astronauts on the space shuttle flights experienced an acceleration of 29 m/s2 (about 3 "g's") during lift-off. what upward force must the astronaut's seat apply to the astronaut in order to cause this acceleration? assume the astronaut's mass is 70 kg, and compute this force when the acceleration is near the earth's surface so their weight equals latex: mg m g .