Four segments of the Self-Paced Physics Course materials are presented in this problems and solutions book for use as the third part of student course work. The subject-matter topics are related to impulses, inelastic and elastic collisions, two-dimensional collision problems, universal constant of gravitation, gravitational acceleration and fields, planet weights, gravitational potential energy, and escape speeds. Contained in each segment are information panels, core problems enclosed in a box, core-primed questions, scrambled problem solutions, and true-false questions. A study guide is provided for each segment, and used to answer the true-false questions and to reveal directions for reaching solutions when the correct answer is chosen. When the core problems is answered incorrectly, the study guide requires the student to follow the remedial or enabling loop, leading, in turn, to the solution of core-primed questions. Also included is an answer sheet for the four segments. (Related documents are SE 016 065 - SE 016 088 and ED 062 123 - ED 062 125.) (CC)