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This is a conceptual question concerning rate of momentum change. I understand that there are perpendicular and parallel rates of momentum change.
This is a conceptual question concerning rate of momentum change.I understand that there are perpendicular and parallel rates of momentum change. I know that perpendicular rate of momentum change of a system in "orbit" is = to the centripetal force assuming speed is constant. Under the same conditions I also know that the parallel rate of momentum change is 0. WHY? Also I don't understand how to calculate the parallel rate of momentum change when speed changes? WHAT IS THE PARALLEL RATE OF MOMENTUM CHANGE????????????????????? (please respond by showing a diagram with vectors)
