Can a fly travel faster than a train?

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John

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Can a fly travel faster than a train?
« on: 27/09/2008 11:07:33 »
John asked the Naked Scientists:

If I am sitting on a train moving at a velocity v, and there is a fly moving in the same direction as the train at a velocity relative to me, say u, does that mean that, relative to a specific point on the track behind the train, the fly is moving with a velocity v+u?

If this is the case then does this mean a fly can travel faster than a train?

What do you think?

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Offline lightarrow

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Can a fly travel faster than a train?
« Reply #1 on: 27/09/2008 12:49:22 »
John asked the Naked Scientists:

If I am sitting on a train moving at a velocity v, and there is a fly moving in the same direction as the train at a velocity relative to me, say u, does that mean that, relative to a specific point on the track behind the train, the fly is moving with a velocity v+u?
Of course.

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If this is the case then does this mean a fly can travel faster than a train?
It depends on the meaning you give to that phrase.

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Offline DoctorBeaver

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Can a fly travel faster than a train?
« Reply #2 on: 27/09/2008 17:35:11 »
If it's a Virgin train, then yes  [:D]
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