Q9

\fO Question 11 Find the velocity and acceleration vectors at t = - 2 D( - 2) = a( - 2) =\f. Question 14 'I A particle moves at a constant speed along a line through P = (6, "?, 4-} to point Q = [1, 7, 3]. Find the parametric equations and interval for its potions at time t if the particle passes through P at time t = and has a constant speed of 3. Give exact answers or round to at least 5 decimal places. mm = :1 w) = :1 a = :1 1mm 2 t s :l