A tram is San Francisco can stop in in a time t when traveling at maximum speed. On one occasion, the driver sees a dog a distance d in front of the car and slams on the brakes instantly. The car reaches the dog a time td later, and the dog jumps off the track just in time. If the car travels a distance x beyond the position of the dog before coming to a stop, how far was the car from the dog? [Hint: You will need three equations.]
A tram is San Francisco can stop in in a time t when traveling at maximum speed. On one occasion, the driver sees a dog a distance d in front of the car and slams on the brakes instantly. The car reaches the dog a time td later, and the dog jumps off the track just in time. If the car travels a distance x beyond the position of the dog before coming to a stop, how far was the car from the dog? [Hint: You will need three equations.]
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