8. 9. Given u = 71-j+k and v= -2i+57-6k find the vector projection of u onto v. [4 marks] :. projzu = A rectangular solid measuring 3 by 4 by 5 is placed on a coordinate grid. a) Determine CF. [1 mark] b) Use the cross product to determine the angle betwen the vectors CF and OP. [3 marks] :. the angle between vectors is CF and OP is C X A(3, 0, 0) Z Z D(0, 0, 5) # To(0, 0, 0) P E F B(3, 4, 0)