DOES MASS HAVE ANY ROLE IN ROCKET PROPULSION?

The Mass of a Rocket is important for two reasons : An object with less mass accelerates more quickly. An object with more mass has more gravitational force acting on it. To understand these ideas, it is useful to think of objects moving in a horizontal direction before thinking about the vertical motion of a rocket. Horizontal Rocket Motion:

THE ATLAS FAMILY

INTRODUCTION: Atlas is a family of US missiles and space launch vehicles that originated with the SM-65 Atlas. Atlas was a liquid propellant rocket burning RP-1 fuel with liquid oxygen in three engines configured in an unusual “stage-and-a-half” or “parallel staging” design. The Atlas was used as the expendable launch system with both the Agena