Which of the following involves an unbalanced force? a force acting between two objects results in the acceleration of on a stationary book exerts a force on a table a person pushes on a table that does not move -In which of the following is the net force zero? force acting between two objects results in the acceleration of one grocery basket moves in a straight line at a uniform speed car coasts to a stop person accelerates a grocery basket toward a checkout station What variables determine your weight on a planet? Group of answer choices mass, gravity, density, and volume mass, gravity, and density mass mass and gravity