A train moving at a velocity of 15 m/s is accelerated to 24 m/s over a 12 second period

75m/s/s

Explanation:

24m/s - 15m/s / 12sec = 9m/s / 12sec = 75m/s/s

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Explanation:

A train moving at a velocity of 15 m/s is accelerated to 24 m/s over a 12 second period ... 24m/s - 15m/s / 12sec = 9m/s / 12sec = 75m/s/s.

it's all four options.

16

explanation:

the marks go by 4s