PHYSICS

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Two trains, each having a speed of'34 km,/h, are headed at each other on the same straight track. A bird that can fly 58 km /h flies ofi" the front of one train when they are 102 kmapart and heads directly for the other train. On reaching theother train it flies directly back to the first train, and so forth. (a) How many trips can the bird make from one train to the other before they crash‘? (b) What is the total distance thebird travels?

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