science speed question?

2009-02-15 4:20 pm

i am learning physics now and i don't get the following question:

Do you think it would be appropriate to describe someone's motion using the ratio time/distance?

更新1:

how can i calculate the speed of 2.2s/5m ? 'I know how to do it if its 5m/2.2s . but i don't know how when its 2.2s/5m

回答 (6)

[匿名]

2009-02-15 4:24 pm

✔ 最佳答案

Yes

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[匿名]

2009-02-16 12:34 am

It would be better to use time/displacement, i.e velocity instead of speed.
As they you know the direction as well as how far they traveled

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[匿名]

2009-02-16 12:28 am

Yes. because it will tell you how fast they are moving and at what distance they were at during a certain time. It perfectly says where they are and how fast.

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[匿名]

2009-02-16 12:28 am

no because motion u should all ready know this is the state in which your moving not how fast you are. DUH!

參考: i should know , i was on the uil science 1st place winner

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[匿名]

2009-02-16 12:26 am

People do that for fixed-distance race, such as Marathon or car race, where competitor performances are measured in time, such as xxx sec per lap.

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[匿名]

2009-02-16 12:24 am