The position vector of a particle at time t >= 0 is: r(t) = (cost + tsint)i + (sint - tcost)j (a) Show that the speed of ds/dt = t. (b) Show that ar = 1 and an = t. how do i do this??
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Originally Posted by Arez (a) Show that the speed of ds/dt = t. (b) Show that ar = 1 and an = t. how do i do this?? The first step is to go back to your class notes or textbook and review the definitions of the things you've been asked to find.
Originally Posted by Arez (a) Show that the speed of ds/dt = t. (b) Show that ar = 1 and an = t. how do i do this?? I have no idea what you mean by "the speed of ds/dt" because there is no "s" in your original problem. Do you mean "Find the speed s= dr/dt"?
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