MAT 228 Midterm: F08mt1
31 Jan 2019
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Name (please print legibly): no calculators are allowed on this exam, please show all your work. You may use backs of pages if necessary. You may not receive full credit for a correct answer if there is no work shown. The dot product of two vectors is a scalar. Given a function r(t), the unit tangent vector t(t) is always perpendicular to its derivative t (t). If v w, then v w = 0. Any vector v is parallel to its negative v. For an object in circular motion, the acceleration vector points away from the center: (14 pts) let p be the plane de ned by. Label your axes. (b) describe and sketch the level curve for y = 0. Label your axes. (c) which of the following is the graph of the above surface? z z. Answer: (35 pts) a particle is moving through space. Use the formula (0) = kr (0) r (0)k kr (0)k3.
