Is Calculating Average Speed for a Round Trip Journey Challenging?

Thread starter ella_101
Start date Sep 16, 2007

AI Thread Summary

Calculating the average speed for a round trip journey can be challenging, especially when different speeds are involved. In this case, a cyclist travels out at 3 m/s and returns at 9 m/s. To find the average speed for the entire journey, the formula for average speed, which is total distance divided by total time, must be applied. Using the equations provided, one can determine the time taken for each leg of the journey and then calculate the overall average speed. Understanding these calculations is essential for accurately determining average speed in varying conditions.

Sep 16, 2007

ella_101

“if a cyclist travels at an average speed of 3m/s-1 and turns home at an average speed of 9m/s than what is the average speed of the whole journey?”

do I need an equation to work this out?

And please show how you got your answer.

Thanks

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Sep 16, 2007

lylos

Try using the equations:

\bar{speed} = \frac{\Delta X}{\Delta t}
X = V_0{}t + at

Also, try using different values for X.

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