Question1
The pilot of the aircraft wishes to fly due west in a 48.5 km/h wind blowing toward the south. The speed of an aircraft in the absence of a wind is 206 km/h. In what direction must the aircraft head?
What must its speed relative to the ground be?
Question2
When at rest a spaceship has the form of an isosceles triangle whose two equivalent sides have length of 2l and whose base has length l. if this ship flies pass on observer with a relative velocity 0.95c, directed along the base, what lengths of the ship's three sides according to the observer?