Recent content by Adam2987

25cos(pie/3t)+12t I think I got it lol

Although when I sub x=0 I don't get 0, which is misleading from the question. Gahhhh. Back to work I suppose.

Ok here's what I've come up with 25cos(pie/3x)+12 substitude time for x and you get your height. How does that look. It seems to give an appropriate answer

err or would it be sinx/sinx-sinx?

ok so I get sinx/(sinx/sin^2x)-sin^2x If I divide that I end up with sinx-sinx = 0?

Hmmm. Do I multiply everything in the first denominator by sinx? Or just the - sinx? I get sinx/sinx-sin2x. I think... I've never seen mulitiplication like this. It's probably something easy, I've just never done it yet.

f( x) = 25cos(3pie/6) 25 is the amplitude. 2pie is the period, 1/4 wave is pie/2 There is no phase shift or vertical shift. There is a reflection in the x-axis I believe though. This is what I have so far. Working on the rest or stabilizing the equation still though. With a lot of...

Ok so after some toying around, I'm thinking I need to derive a sin or cos equation using amplitude, period and 1/4 wave but I can't seem to determine these and the horizontal axis. Yikes!

The movie is Ghostbusters by the way...lol

http://qbx6.ltu.edu/s_schneider/physlets/main/rollingwheel.shtml Here's the website I found. Looks like a sinusoidal wave. Thanks for the pointers. I'm going to try and work soemthing out right now.

(1/sinx)(sinx/sinx) = sin^2x - sinx?

Homework Statement 1/cscx-sinx = secx tanx Homework Equations cscx = 1/sinx secx = 1/cosx The Attempt at a Solution 1/cscx-sinx = secx tanx L.S. = 1/cscx-sinx = 1/(1/sinx)-sinx R.S. = secx tanx = (1/cosx)(sinx/cosx) This is where I'm getting confused. Why can't...

But, if we take a certain point on the wheel, (we'll call it x) at such a time let's say 1 second, assuming the tire hasn't made a full rotation, is it not higher than its original position? At 0 the initial height is 0 At 1 second, our point of x should be higher than 0 assuming the bike...

That makes a lot of sense haha. No wonder I couldn't figure out an equation.

I don't need to solve for height at each second. The question only states that I come up with an equation to determine height. So merely solving for x and y isn't going to net me any marks. And every equation I am creating is giving me whacky results. I'm just wondering if there is some trick to...