I've timed a game for PAL, and I want to adjust the values so it runs at the same speed (well, rephrase: "the objects move at the same relative speed") in NTSC.

If I have a speed of V

I'm having problems with A. I know the ratio is different, but my maths are rusty. I know I have to use derivatives and nice differential equations. Years ago this would be easy to solve, but now I'm struggling.

Any help?

If I have a speed of V

_{PAL}, V_{NTSC}= V_{PAL}* 5 / 6I'm having problems with A. I know the ratio is different, but my maths are rusty. I know I have to use derivatives and nice differential equations. Years ago this would be easy to solve, but now I'm struggling.

Any help?