How Do You Calculate Average Speed Over Different Speeds?

AI Thread Summary
To calculate average speed over different speeds, use the formula: average speed = total distance / total time. In the example provided, driving 1 kilometer at 14 km/h takes approximately 4.29 minutes, and driving another kilometer at 30 km/h takes 2 minutes. The total distance is 2 kilometers, and the total time is about 6.29 minutes, leading to an average speed of approximately 19.05 km/h. It's important to distinguish between speed and velocity, as they are often used interchangeably but have different implications. Understanding these calculations is essential for accurately determining average speed in varying conditions.
monkeycrazy15
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1. We drive a distance of 1 kilometer at 14 km/h. Then we drive an additional distance of 1 kilometer at 30 km/h. What is our average speed?



2. average speed= total distance / total time


3. 22mp/h
 
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If your velocity is 14km/h, then if you drove a distance of 14km it would take you 1 hour, as I'm sure you're aware. Thus if you only drove a distance of 1 km . . .

What is the formula for velocity? Think about the dimensions (units) of velocity.
 
the formula for velocity is

v= distance / time


and i think the 14 km/h is regarding the speed
 
Yes, you're right. I tend to use velocity as synonymous with speed, which isn't correct. Often it will be negligible, though.

Speed=Distance/Time

Just plug and crank, now.
 
but i don't know how to find the time
 
Speed=Distance/Time

If your speed is 14km/h,
and you travel a distance of 1 km,
then the time is ?

I'm sorry, I'm not sure I can walk you much farther without giving you the answer, but let me know if this doesn't help and I'll think of another way. =)
 

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