How fast do I have to go?

I'm with Tony and 2Hybrids. (30+90)/2=60. No spreadsheet or flux capacitors required.

Moving at the speed of light requires zero mass. Now you know why all those people living in the fast lane of life are so skinny!

 

I thought it was cocaine...

Anyway - I'm starting to see where they are coming from with this. There is, in fact, a time limiter on this which comes in the form of "miles PER HOUR".

Am I right?...or out in left field?

 

but in this case it is not an average speed over time but the actual speed at the moment he checked your speed

 

At 90mph, 2nd lap would take 2/3 minute.
Avg would be 2miles/2.66 min = 45mph.

 

The Oolong is of the highest quality.

The Lorenz Transform is the name, I believe. It also states that dimensions must also go to zero and become imaginary beyond. The time dimension also becomes imaginary I think. Can't recall.

 

I want some of what you are smokin!!!

 

in order to average 60mph on a 2 mile distance you need to go at 60mph for 2 minutes for 2 miles, but your 2 minutes are used up by your first lap at 30mph. You don't get a chance to go 90mph on your second lap becuase your time is up. There are only 2 minutes out of the whole hour when you can actually average 60mph, but they were wasted on your first lap.

60mph
1hr = 60minutes
60minutes = 60miles
2minutes = 2miles

 

As I read the question, the 60mph average is over two *laps*, not two *minutes*. That's completely different. Or has it been t'oolong since high school physics?

 

So you are saying this is miles per THE hour instead of miles per AN hour?

 

If you travel 30 mph for one mile or two minutes and then travel at 90 mph for two minutes or three miles the net result is that you would travel a total of four miles in four minutes or 60 mhp average. The amount of time traveled at the fixed speed is important not the distance.

 

It says two LAPS. To average 60mph over two LAPS, You have to travel those two LAPS in two MINUTES.

 

ssshhhh....... hear that? :huh:

that was the sound of my head exploding! :lol:

really folks, I'm sure that you are correct - it's just that I can't get my wiener brain to cooperate, and I can't do that equation on my fingers or toes.

And that, my friends, is why I failed math 3 times in college, utimately resulting in being 1 credit shy of obtaining an associates.

I will now bow gracefully to the god's of mathematics and physics...

 

This does give you your 60 mph average, but you've gone 4 laps.

 

I don't think that was his intent.
I'm on a limb, but possibly this would be more clear.

Our goal:

60 miles/hour = 1 mile/minute = 2 miles/2 minutes.

= 2 laps/2 minutes.

 

Nice pun! BTW, for the non-tea folks out there Oolong is a kind of tea sort of an intermediate between a black tea and a green tea.

I think there was some confusion early on. He never said anything about minutes in the OP.

 

He said 2 miles at 60mph. That is 2 minutes.

 

Let us hope this is the tread's terminus.

If you are limited to exactly 2 miles. And, you must average 60 MPH;

If you take more than 2 minutes to go 2 miles, your average speed was less than 60 MPH over the 2 miles.

If you take less than 2 minutes to go 2 miles, your average speed was greater than 60 MPH over the 2 miles.

So, a time limit is inferred from the 2 constraints: 2 miles--no more, no less and, 60 MPH average. It is only possible to do that in exactly 2 minutes.

Now, we know we MUST do 2 miles in 2 minutes or, we violate 1 or both of the 2 constraints.

jrohland