4. A figure skater is attempting to perform a quadruple spin jump. He sets up his jump with an initial skate along vector d. He then plants his foot and applies vertical force at an angle according to vector e. This causes him to leap into the air and spin. After landing, his momentum will carry him into the wall if he does not apply force to stop himself. So he applies force along vector f to slow himself down and change direction. a) Add vectors d and e to find the resulting vector (a) for the skater's jump. The angle between d and e is 450. If the xy- plane represents the ice surface, calculate the angle the skater will take with respect to the ice e (0, 30, 30) surface on this jump. b) Rewrite the resulting vector a without the vertical coordinate. For O example, if the vector has components (20, 30, 15), rewrite as (20, 30). d(0, 20, 0) Explain the significance of this vector. F ( 15 , 5 , 0 ) >y c) Add vectors a and f to find the resulting vector as the skater applies force to slow himself. Explain the significance of this vector