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For an object moving in a straight line with uniform acceleration, the acceleration is 2m / S2, which means () A. The speed of an object at the end of any second is twice that at the beginning of that second. B. the speed of an object at the end of any second is 2 m / s higher than that at the beginning of that second. C. the speed of an object at the end of the first second is 2 m / s. D. the initial speed of an object in any second is 2 m / s higher than that at the end of the previous second
In AB, the acceleration of an object moving in a straight line with uniform acceleration is equal to 2 m / S2, which means that the speed increases by 2 m / s per second. That is to say, in any second, the final speed is 2 m / s greater than the initial speed, so a is wrong, B is correct. C. assuming that the initial speed of the object is zero, then the speed at the end of the first second is 2 m / s, but the title does not explain the initial speed
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