Recent content by polishdude20

Homework Statement I did this one before a few weeks ago but now I can't seem to get the right answer: An elliptical disk is to fit snuggly and squarely into a notch cut into a rectangular plate. The notch is 180 mm wide. If the disk's major axis is 280 mm long and is parallel to the long...

nono! I said that because someone else wrote the wrong thing and stuff.

I don't know dick but I got the answer figured out after doing some more thinking, if you guys want to see a solution just wolfram alpha it.. I didn't do it that way though..

it's supposed to be "5/p(p-4)" but I've done it with a lot of writing, this stuff fills up your page fast doesn't it?

Homework Statement Simplify the following expression by rewriting it as a single simple fraction in simplest form: Homework Equations not much just factoring and solving for P The Attempt at a Solution I tried to factor the fractions by multiplying the denominators with the numerators and...

yes i tried that and i don't know do i add the fg of the hanging block to the Fx of the block on the plane?

can anyone help?

Homework Statement An 18kg cart is connected to a 12kg hanging block at the bottom of the incline (ignore friction) What is the magnitude of acceleration of the cart? Homework Equations F=ma Fx=Fgsinx Fy=FgCosx The Attempt at a Solution well without the hanging...

Assignment of Variables please Help! Ok well I am very confused on what variables you assign for the velocity addition equation. What is U' , U , and V? like let's say 2 rockets heading toward each other and I want to find the speed i see if I'm on one of those rockets. Also as a bonus I...