1. If the object's acceleration is a(t) = 2.7 + 4.t j + (6 + 2t).k, with initial condition v(0) = i+ 2 k and r(0) = i + ] Find a) Velocity : v(t) b) Object Position : r(t)2. a) Given a = (3, 0, 4) and b = (12, 5, 0), a and b flanking angle 0. Find cos 0! b) Find The Plane Equation through A(3, 1, 2) , B(2, 3, 1) and C(1, 2,3)