'simple' physics question..

[Digits]

omg..

I've been sitting here.. Thinking.. And I CANNOT get this one question.. I'm also pretty sure I did half of the other ones wrong, but I don't care anymore..

So the question..

"I excerted a force of 750 N on a go-cart for a distance of 120 m. If the mass of the go-carts is 12.25 kg, how fast was the go-cart travelling after I had finished pushing it?"

Is this even possible?

[�?�� �m���]

Use the Big Three Formulas
V=Vi+at
X=xi+Vot+1/2at^2
V^2=Vi^2+2ax

then knowing that N= force = mass times acceleration, you find acceleration then knowing the distance you can find the time and then plugging in the time you can find the speed/velocity

[Army]

12?

Des Moines?

C?

It's gotta be C, every unanswerable answer is C.

[Digits]

^^

lmao..

to blue..

I already figured out the acceleration

twas

9187.5 m/s2(squared)..

So.. How do I figure out time (this is simple physics BTW, and im stupid)..

[Restola]

Originally posted by Digits
So.. How do I figure out time

Take any equation you know the other variables for, and solve for t. Then plug in your numbers.

[nippinout]

Quadratic formula is your friend.

[TraXeR]

I swear you guys are speaking a foreign language, I could never understand physics to save my life.

[mikey101]

for Vf(speed at end of push) I got 121.21m/s

there's another galilean equation too: d = 1/2(Vf-Vi)t ..just helps to check the answer.

[MantisMag]

it's been a long time since i had physics. over 4 years. but isn't this a KE problem? F*D = Work. if no energy is lost it gets converted to kinetic energy. KE=M*V^2?

[Digits]

meh I guessed on it.. Put down some jibberish lol.. I guess we'll see.

[FreshmanBob]

mantis, this isn't quite that complicated yet, its newtons laws with rectilinear motion thrown in.

Woooooo tDec!! (thats The Drexel Engineering cirriculum)

[Digits]

Originally posted by FreshmanBob
mantis, this isn't quite that complicated yet, its newtons laws with rectilinear motion thrown in.

Woooooo tDec!! (thats The Drexel Engineering cirriculum)

Ya this is the fiiiiirst physics stuff

[MantisMag]

Originally posted by FreshmanBob
mantis, this isn't quite that complicated yet, its newtons laws with rectilinear motion thrown in.

Woooooo tDec!! (thats The Drexel Engineering cirriculum)

hehe. that's just what jumped out as the most direct translation from question to formula. was it right? sounds good to me but like i said it's been a long time.