Fleisher, Paul. Objects in Motion : principles of classical mechanics / by Paul Fleisher. - Minneapolis, Minn. : Lerner Publications, c2002. - 79 p. : ill. (some col.) ; 23 cm. - Secrets of the universe. . Includes bibliographical references and index. ISBN: 0822529858 (lib. bdg. : alk. paper) LCCN: 000011960 Subjects--Topical Terms: Mechanics--Juvenile literature.Mechanics.