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5. [0/5 Points] DETAILS PREVIOUS ANSWERS LARCALC11M 12.3.025.MI. MY NOTE Use the given acceleration function and initial conditions to find the velocity vector v(t), and position vector r(t). Then find the position at time t = 7. a(t) = -cos ti - sin tj v(0) - j + k, r(0) = i v(t) = -sin (t )i + ( cost - 2 )j + k X r(t) = cos ti + (sin t - 2t )j + th X r(7) = cos ( 7 )i + (sin (7 ) - 14 )j + 7k X2. [0/10 Points] DETAILS PREVIOUS ANSWERS LARCALC11M 15.1.012. Find | |FII. F(x, y) = yi + xj V ( 12 + x2 ) X Sketch several representative vectors in the vector field. y 4 X X 4 -2 2 4 -4 -21 4 1. [0/10 Points] DETAILS PREVIOUS ANSWERS LARCALC Match the vector field with its graph. F(x, y) = xi + 3yj O O x 5 -5- XO O