Recent content by coco87

Mark44: Hmm, how would I check without a function to integrate?

Mark44: Thank you for your tip :) I'm actually not leaving anything out at all. Many of these questions are vague (and rather annoying). I think I might have it, but am not sure: \int_{0}^{8}\int_{0}^{\sqrt[3]{x}}\int_{0}^{\sqrt{z}}dydzdx. However, this seems way to easy to be true...

Homework Statement Rewrite \int_{0}^{2}\int_{0}^{y^3}\int_{0}^{y^2}dzdxdy as an integral with order dydzdx. Homework Equations N/A The Attempt at a Solution Honestly, I got as far as sketching it: and after sketching it, I'm lost... I can't figure out how to set z or y, but...

Mark44: In class we never really had many (if any) word problems on tests. Maybe some in homework, but I'd usually have to look at a solution to get an idea of how to solve it. I can't remember a-lot of the related rates part of calc 1, we might not have covered it that well. I agree with your...

Hey, I'm in my Physics 1 course now, and am having issues. I've done well in math, and will be entering Calculus 3 next semester. I usually have no issues doing calculations at all. The problem I seem to be having is with physics problems in general. Sometimes I have to derive a totally new...

Thank you for your response, it seems I did not understand the relationship between forces correctly. I've got it now :)

Well, Fn = mg (since there's no acceleration), so that's not hard to find. I'm assuming Fy isn't either, and I figured it was only trig, but whenever I try with trig, I can't seem to get anywhere near -217.8476

I apologize, I left out a part. The answer that is given for that part is: Fy = -217.8476. I did set Fnety to 0 and solve that way, but when I do that I get: Fy = 838.2589. So there is something I'm missing here :frown:

Homework Statement In the figure, a crate of mass m = 96 kg is pushed at a constant speed up a frictionless ramp (θ = 27°) by a horizontal force F. The positive direction of an x-axis is up the ramp, and the positive direction of a y-axis is perpendicular to the ramp. (a) What is the magnitude...

What you had said triggered an idea, and after playing around with the equations, I found out that I had misunderstood the Constant Accelloration equations all along.. well, I do now :biggrin: Thank you guys for your help!

So, I'm either using the wrong formula, or I need to find the initial velocity (or angle)? I don't know of any other formulas (other than v = v_{\circ}+at), and I have no idea how I would even obtain the angle up there. Could you possibly give me a hint? (or another one :wink: ) Thanks for...

Homework Statement A ball is thrown leftward from the left edge of the roof, at height h above the ground. The ball hits the ground 1.50s later, at distance d=25.0m from the building and at angle \theta =60^ {\circ} with the horizontal. (a) Find h. What are the (b) Magnitude and (c)...

I went on ahead with what I had and got it wrong. But the second time around (it gives you new values), I concentrated on the green car, and only used the red car to get the time, and I got the correct answer. Thanks for your help! :biggrin:

Homework Statement a red car and a green car, identical except for the color, move toward each other in adjacent lanes and parallel to an x axis. At time t = 0, the red car is at xr = 0 and the green car is at xg = 250 m. If the red car has a constant velocity of 23.0 km/h, the cars pass each...