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11 August, 12:42

A train increase its speed steadily from 10m/s to 20m/s in 1minutes A what is the average speed during this time in m/s B how far does it travel while increasing its speed

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  1. 11 August, 15:20
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    If it increased its speed steadily at a constant rate, then the average speed for the minute was

    (1/2) (10m/s + 20m/s) = 15 m/s.

    Rolling at an average speed of 15 m/s for 1 minute (60 seconds), it travels

    (15 m/s) (60 sec) = 900 meters
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