An objects position equations: x=3t^2-6t y=t^3-3t x'=6t-6 y'=3t^2-3 When at rest v=0=sqr root of (x'^2 +y'^2) It does not appear to ever be at rest. Is that correct? The question asks when is the object at rest.
Last edited by Stuck Man; Dec 9th 2011 at 06:24 AM. Reason: mistake
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Originally Posted by Stuck Man An objects position equations: x=3t^2-6t, y=t^3-3t x'=6t-6, y'=3t^2-3 When at rest v=0=sqr root of (x'^2 +y'^2) It does not appear to ever be at rest. Is that correct? The question asks when is the object at rest. Well it is true that if then is it not?
I found my mistake in the arithmetic.
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