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A wooden boxcar is moving along a straight railroad track at speed 85 km/h. A hunter accidentally fires a bullet (initial speed 650 km/s) from a high-powered rifle which hits it. The bullet passes through both walls of the car, its entrance and exit holes being exactly opposite each other as viewed from within the car. From what direction, relative to the track, was the bullet fired? Assume that the bullet was not deflected entering the car, but that its speed decreased by 20% (why don't you need to know the width of the car to solve it!)