This math topic focuses on calculating the speed of a person walking from the back to the front of a moving train, relative to the ground. It involves principles from the areas of speed, distance, and time. The problems require understanding and application of relative velocity, especially considering the constant speeds of the trains and the distances they travel. Each question presents different train speeds, train lengths, and distances traveled, prompting learners to solve for the person’s speed relative to the ground under various scenarios.
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A person on a 60 m long train that is going 5 m/s walks from the back to the front while the train goes 150 m. What is the person's speed relative to the ground?