3. on the surface of the moon, the acceleration due to gravity (gmoon) is 1.6 m/s2 . an astronaut has a mass of 79 kg. a) calculate his weight on earth. b) what is the mass of the astronaut when he is on the moon? c) calculate his weight when it is on the moon. a stationary 35 kg object is located on a table near the surface of the earth. the coefficient of static friction between the surfaces is 0.45 and of kinetic friction is 0.25. use this information for problems 4 and 5. 4. a horizontal force of 100 n is applied to the object. a) draw a free body diagram with the forces to scale. b) determine the force of friction. c) determine the acceleration of the object. 5. a horizontal force of 250 n is applied to the object. d) draw a free body diagram with the forces to scale. e) determine the force of friction. f) determine the acceleration of the object.