Question: Initially stationary, a train has a constant acceleration of 0.5 m/s 2 . (a) What is its speed after 15 s? (b) What is the

Initially stationary, a train has a constant acceleration of 0.5 m/s².
(a) What is its speed after 15 s?
(b) What is the total time required for the train to reach a speed of 25 m/s?

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