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Old 01-30-2010, 08:52 PM
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Default average speed
a motorist travels for 3 sec at 80 km/h and 2 sec at 100 km/h...what is his averga speed for the trip?

might it be 80 plus 100 divided by 2?
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Old 02-12-2010, 11:14 AM
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Average speed = distance travelled / time taken

How far did he go?

We know he took 5 seconds to do it.


Quote:
Originally Posted by alessandro View Post
a motorist travels for 3 sec at 80 km/h and 2 sec at 100 km/h...what is his averga speed for the trip?

might it be 80 plus 100 divided by 2?
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