(1 point) If r(t) = cos(4t)i + sin(4t)j - 3tk, compute: A. The velocity vector v(t)...

Transcribed Image Text:

(1 point) If r(t) = cos(4t)i + sin(4t)j - 3tk, compute: A. The velocity vector v(t) = B. The acceleration vector a(t) = i+ F j+ j+ Note: the coefficients in your answers must be entered in the form of expressions in the variable ; e.g. "5 cos(2t)" k k (1 point) If r(t) = cos(4t)i + sin(4t)j - 3tk, compute: A. The velocity vector v(t) = B. The acceleration vector a(t) = i+ F j+ j+ Note: the coefficients in your answers must be entered in the form of expressions in the variable ; e.g. "5 cos(2t)" k k