Starting from rest a subway train first accelerates to 28ms


Problem: Starting from rest, a subway train first accelerates to 28m/s and then begins to brake. Forty-eight seconds after starting, it is moving at 16m/s.

Part A: What is its average acceleration in this 48-s interval?

Any expert will able to provide correct solution for find its average acceleration in given time interval.

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Physics: Starting from rest a subway train first accelerates to 28ms
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