Лаг1989 задача №2.9
The force, changing with time according to the law F = At * (τ-t), began to act on the resting particle of mass m at the time t = 0; where A is a constant vector; τ is the time during which the given force acts. Find the momentum of the particle after the end of the force and the path traveled by the particle during the time of the force.
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