1. The wind is blowing from the direction S40E (40 south of east) at a speed of 80 km/h. The pilot wants the ground speed to be 250 km/h at a bearing of N70E (70 east of north). Find the airspeed, use sine cosine law.

2. An airplane is flying with an airspeed of 400 km/h at a bearing of N20E. There is a wind blowing from the direction W30N (30 north of west) at a speed of 80 km/h. Inside the airplane, a passenger is walking at 5 km/h towards the front of the plane (relative to the plane). Determine the velocity of the passenger relative to the ground. SOLVE THESE QUESTIONS WITHOUT CARTESIAN COORDINATES. USE SINE COSINE LAW VECTOR DIAGRAMS, no coordinates.