Physics Review QuestionUnit:
Mechanics Year:
1990 Question#:
2Question:
An object has a constant acceleration of 2.0 meters per second^{2}. The time required for the object to accelerate from 8.0 meters per second to 28
meters per second is(1
) 20.s(2
) 16s(3
) 10.s(4
) 4.0sWhat is this question really asking?
Explanation by: Alon B [ Return to question menu
]Answer 1
20.s INCORRECT This answer is incorrect because it is not the answer you would get if you used the correct formula and numbers. Try using . return to top
Answer 2
16s INCORRECT Try this . return to top
Answer 3
10.s CORRECT This answer is correct and fits the equation. The formula you need is . return to top
Answer 4
4.0s INCORRECT This answer is incorrect because the answer does not make sense, if you calculated your answer using you would not get 4.0 sec. return to top
What's this question really asking?
This question is testing to see if you know how to use the acceleration formula. It is important to remember that (delta v) is equal to (final v) minus (initial v). return to top |

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