How Do You Calculate Average Speed Over Different Speeds?

[monkeycrazy15]

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

 

[Furby]

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.

 

[monkeycrazy15]

the formula for velocity is

v= distance / time


and i think the 14 km/h is regarding the speed

 

[Furby]

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.

 

[monkeycrazy15]

but i don't know how to find the time

 

[Furby]

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. =)