Respuesta :
An object with no net force cannot experience acceleration as per Newton's Second Law. However, it is moving, so it is experiencing velocity. Since there is no acceleration, we can say that the object experiences constant velocity.
-- "No net force" implies no acceleration.
-- "No acceleration" implies constant uniform motion.
-- "Constant uniform motion" implies constant speed, in a straight line.
-- "No acceleration" implies constant uniform motion.
-- "Constant uniform motion" implies constant speed, in a straight line.