M-273Q Quiz: MATH 273 Montana State Quiz4
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You are expected to show proper work to receive full credit. Quiz 4 : 13. 4 & 13. 5: two paths ~r1(t) and ~r2(t) intersect if there is a point p lying on both curves. We say ~r1(t) and ~r2(t) collide if ~r1(t0) = ~r2(t0) for some t0. Which of the following statements are true: (a) (b) (c) If ~r1(t) and ~r2(t) intersect, then they collide. If ~r1(t) and ~r2(t) collide, then they intersect. Intersection depends only on the underlying curves traced by ~r1(t) and ~r2(t), but collision depends on the actual parametrizations: find the unit normal vector at t = . 4 to the helix ~r(t) = hcos t sin t, ti: find ~r(t) and ~v(t) given that.
