JEE Main & Advanced
Physics
Mathematical Tools, Units & Dimensions
Question Bank
Self Evaluation Test - Physical World, Units and Measurements
question_answer
The thrust developed by a rocket-motor is given by \[F=mv+A({{P}_{1}}-{{P}_{2}})\] where m is the mass of the gas ejected per unit time, v is velocity of the gas, A is area of cross-section of the nozzle, \[{{P}_{1}}\] and \[{{P}_{2}}\] are the pressures of the exhaust gas and surrounding atmosphere. The formula dimensionally