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Answer to Question #60631 in Other Physics for JAZY

Question #60631
You have a machine which can accelerate a disk on frictionless ice. Starting from rest, the disk travels a distance x in time t when force F is applied. If force 3F is applied, the distance the puck travels in time t is
Expert's answer
the disc velocity is directly proportional to its momentum: p = m*v
the initial momentum of the disc is equal to the impulse provided by the machine: p = f*t
assuming equal time interval of interaction, the triple force would provide triple speed

therefore, the new distance traveled by the disc in time t is 3x

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