Recent content by StudentTM

Ohh, that explains a lot :) Thanks .. Yes I should be paying more attention at class for sure ;)

Somebody suggested to me that a_x = ( 30 (centripetal acceleration) * v * v_x1 ) / 60*60 a_y = (( 30 (centripetal acceleration) * v * v_y1 ) / 60*60 ) - 9,8 would be correct. And a_x = -39.8 * V_t * Vy_1 / (60 * 60); a_y = 39.8 * V_t * Vx_1 / (60 * 60) - 9.8; is wrong. Why should it be like...

I understand. Thank you Voko! I'll now start finishing this program and start writing report. I might have a questions or two for the process of evolving those equations. I'll post the finished assignment/program here. Thanks to everyone who helped and participate in discussion.

At the bottom of the loop where y = 0 and v = 60 m/s the KE is (1/2)mv^2 = 1800m J. At the top of the loop I have v=19.36m/s and y= 166.061, for a total energy of (1/2)mv^2 +mgh = 1814.8m J. I think the error is due to the way that the Euler method assumes for each incremental step that...

y of course :) Thank you, I'll check that out

Aha, ok. So equation for that would be.. 0,5 * m * V_t*V_t + m * g * x (height in this case is x) .. right? And I take for example few positions, which give me V_t and x, for each of it. Total mechanical energy in each position must be almost the same (not exactly because of the error). Right...

What about this, what I sent to my professor (but he didn't check if it's right yet). These are simpler equations and a graph look right to me. EQUATIONS: // Acceleration var Ax = -39.8 * V_t * Vy_1 / (60 * 60); var Ay = 39.8 * V_t *...

Voko, thank you for your time and answer, I'll have a close look to what you wrote. So here's the deal. I had to finish this till yesterday. I have to write the whole report and equation and how did I get those equations. Because I haven't been able to do the report on time, I sent to...

I see, yes. But I don't know how to do that :/ So F = m * a ... a is centripental acceleration? If so, it's constantly pointed towards the center od the loop, right? In #13, x and z are components of the acceleration? How can it be distance and altitude .. If you multiply meter x meters you get...

Yes, I'd have to manipulate the current vectors of position, velocity and acceleration. Finally this would lead me to get two differential equation for the second derivative of the two components of the position in time in dependence on the current position and velocity. Any ideas how to do this?

I try to understand but it's very hard for me. This above are equations of motion under the constrain of the centripetal force. But unfortunately, I think this is not going with Euler's method. My assignment is to program in C# with Euler's method. I think programming won't be so difficult when...

I think 39.8 is initial centripetal acceleration + gravitational acceleration. The equation for the magnitude of A_L (meaning acceleration due to lift) is A_L = (30+g)(V_1/60)^2. Note that it includes g - this is because the amount of lift at the start must provide enough force to overcome...

We are trying to solve this with Euler's method.. I'll try to translate this correctly.. I'll mark XXX equations I'd have to fill in.In this case we have a plane with acceleration, which is at all times orthogonal to the movement of a plane. If we would describe the movement in a horizontal...

Thank you. And this is for a glider plane right?

Voko, I understand & agree with you. But what if I don't understand 'Newton's second law is a system of second-order differential equations, which you will have to integrate numerically'