Pressure: the exertion of force upon a surface by an object, fluid, etc.
PSI: Pounds per Square Inch
Center of Mass: the mean location of all the mass in a system
Propulsion: the act of propelling or the state of being propelled
Newton's 1st Law: An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by and unbalanced force
Newton's 2nd Law:A body of mass subject to a net force undergoes an acceleration that has the same direction as the force and a magnitude that is directly proportional to the force and inversely proportional to the mass, F = ma
Newton's 3rd Law:The mutual forces of action and reaction between two bodies are equal, opposite and collinear
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