HKCEE question , about examine personal reaction time by release the ruler.
2000,Q7(a)(ii)
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If a heavier ruler is used, how would result of the above test be affected?
explan your answer.
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The answer is No. why????
If there is air resistance,
i think heavier ruler will have greater acceleration than lighter ruler.
but the question didn't reveal if there is any air resistance.
Should I have to ignore the air resistance to answer the question?
please answer question ,thx!!!
[physics] Air resistance
2007-08-06 2:47 am
回答 (1)
2007-08-06 3:00 am
✔ 最佳答案
yes, you should ignore it in your level
most of the air resistance should be ignored (the hkcee paper have written)
the reason is for simplification
but in a higher level (AL)
air resistance would involve in calculation
and your idea is correct!!!
hope that help you:->
參考: me
收錄日期: 2021-04-12 20:49:13
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