Hi can someone help me solve this

3. A plane is travelling [$ 30 E] at a speed of 200 km/h for 1.5 hours. It then turns heading in a direction of [N 10E] at a speed of 150 km/h for 0.5 hours. At this time the plane goes back to its starting point. Suppose /1, 12 and 13 represent the displacement vectors for each leg of the trip. a. Determine l1, the first leg of the trip. [1 mark] b. Determine 12, the 2nd leg of thet trip. [1 mark] c. Determine 13, the third leg of the trip. (2dp) [4 marks]