问题描述：
英语翻译
An auto moves 10 meters in the first second of travel,10 more meters in
the next second,and 10 meters during the third second.The acceleration of the
auto in m/s2 is
An auto moves 10 meters in the first second of travel,10 more meters in
the next second,and 10 meters during the third second.The acceleration of the
auto in m/s2 is
问题解答：
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