Lesson 2.7: Time, Speed & Distance
Description:
Speed-based problems include trains, boats, and relative speed.
Key Topics:
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Boats & Streams:
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Speed downstream = u+v, upstream = u−v.
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Trains Problems:
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Speed = Distance/Time, length-related calculations.
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Example:
Train 120 m long at 60 km/h passes a pole. Time = (120/1000)/(60/3600) = 7.2 sec.
