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Impulse and Power

The engine of a model rocket is rated with a total impulse of 5.00 N seconds and a thrust duration of 1.20 seconds. What is the average force exerted by the engine? I believe the answer is 4.17 N. I need to see each step and formula to solve this question.

Solution Summary

The impulse acting on the rocket is given and the net force acting on the rocket is calculated.