Friday, January 8, 2010

How far will an object move in one second if its average speed is 5m/s?

This is a good question. If you do not specify the interval used to compute the average speed, then we cannot tell. For example, if the average speed was measured between time t= 0 sec and time t = 100 sec, we can only tell that it did 500 m after the 100 sec. (500m /100s = 5m/s). However, it could be that it did all the 500m in the first second and didn't move after. So, the answer is we don't know.





If we make the *assumption* that the average speed was 5m/s in the first second, we have that the object moved 5m/s x 1s = 5m, but this requires an assumption.How far will an object move in one second if its average speed is 5m/s?
seriously...i'm not even in physics...i'm still in geometry and i even know the answer to that...it's too obviousHow far will an object move in one second if its average speed is 5m/s?
distance = speed x time.


so, it would be 5m/s x 1= 5m.
... was this a joke?

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