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The velocities of commuter trains A and B are as shown. Knowing that the speed of each train is constant and that B reaches t

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VA = 70 kmh i LXÔ Vo = 52 km/h ( cases it sinas 3) v 471128 i +2) 1976 km/h When A was at crossing let b was od Bo te becauseif you need any further assistance let me know in comment section below.

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