can THE ESCAPIST help me with my homework.

[team star pug]

Here is a challenge. i have homework to do and i need the escapist's help. it's speed-distace time.

Q1. Find the average speed of a train which covers 120 miles in one and a half hours.

 

[Pimppeter2]

No, but I hear Godzilla can


....He's a physics major you know

 

[KosherGreenBean]

average speed = total distance / total time
i think...

 

[spike0918]

Yeah it is s=d/t
Speed equals distance over time

Plug in your variables and your good to go. By the way, google is your friend

 

[ciancon]

Yeah that's not exactly a tough one. Doesn't even deal with acceleration!
(it's all ahead of you)

 

[minispike47]

80mph...i think...it was a long time since i've done any maths/physics

 

[Random Argument Man]

No, but I hear Godzilla can


....He's a physics major you know

Mmmm I don't know. Let's ask him.

On second though, let's do that later.

 

[PxDn Ninja]

That is just basic math, barely algerbra. Curious, what grade is this for?

 

[Kinguendo]

NO! NO CHEATING!

BACK TO WORK!

Wait, this isnt a sweat shop... still no, cheating is wrong... mmmm'kay?

 

[El Poncho]

well do you need to change the hours to minutes or is it fine as it is then it would be 180miles/hour

EDIT! I timesd it so nvm I think it is 80.

 

[Gildan Bladeborn]

Wait, this is the problem you ask the internet for help with? Egad. In lieu of actually answering your question, if you go 60 miles in an hour, how fast are you traveling during that hour?

Well this train just went twice that distance in an hour and a half. Divide 120 by 1.5 dude, problem solved.

I seriously thought everyone knew how that worked.

 

[Pimppeter2]

No, but I hear Godzilla can


....He's a physics major you know

Mmmm I don't know. Let's ask him.

On second though, let's do that later.

Ahh, I see he is busy saving the world from Communists.

 

[Robyrt]

On the larger question:

I find it useful to think of math questions with lots of different units in chemistry terms. You want "your" units to end up on the right side, so rearrange the stuff on the left until the other units cancel out.

In this case, you have a train traveling 120 miles in 90 minutes, and you want its speed in miles per hour:

(120 miles / 90 minutes) * (60 minutes / 1 hour) = 80 miles / 1 hour.

 

[You_have_a_name]

80mph

 

[DuplicateValue]

It really isn't hard.

Divide 120 by 90 to get the speed in miles per minute, then multiply by 60 for miles per hour.