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Question 15 A particle moves with position function r(t) : 5 cos(t) i + 4sin(t)j + It. (For each part below. enter an integer or

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Question 15 A particle moves with position function r(t) : 5 cos(t) i + 4sin(t)j + It. (For each part below. enter an integer or a fraction; for example. enter 5 5 512 for a and 51'12 for E; no space and no parentheses; must simplify your answer) 71' 1. Find the speed at t = a. speed - 2. Find the curvature of the curve at t = g. n" 3. Find the normal component of acceleration 25 = E- | 3N

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