Consider the following vector.
→(u) = →(ı) - 2→(ȷ) + 5→(k)
Calculate the following.
(a) The unit vector in the direction of →(u) (written as hat(u) in class)
(b) The vector in the same direction as →(u) but 3 times as long.
(c) The vector in the same direction as →(u) but with length 3 .
(d) The vector in the opposite direction as →(u) but with length 2 .