Applet become unestable

NUMB3RS shared this question 10 months ago
Answered

Hi, I'm still very intrigued about this. I'm doing this applet to illustrate to my students the resisted projectile motion. I deeply appreciate all help from this forum . . . My problem this time is to find out why the applet collapses for small values of mass (m) for instance when m =0.1 or less. Same for k, which is the coefficient of drag. The variable time (t) stop working in those cases and it shows the error included in the attachments. I hope you can help me.

Regards

Comments (2)

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para m<1.9 tt es undefined, supongo que el Ln() está por debajo del valor minimo para numeros negativos 'grandes'

revisa la definicion de tt y evita o elimina valores cercanos al 0 de la expresion en Ln()

date cuenta que para ciertos valores de m el valor del argumento del Ln en tt puede ser cercano al cero y dar un Ln excesivamente enorme. puedes probar a hacer la resta de 1 y la fraccion, o a convertir el cociente en una resta de dos logaritmos etc. la cuestion es que tt no se indefina

espero que solo sea eso y se pueda ajustar y corregir

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Thanks mathmagic, . . . your help is always appreciated. I will look into all those things and see what happen.Thanks again.

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