1. The distance from two airports is 1286 km by air. Plane A leaves the first airport at 10:00a heading north toward the second airport, another plane leaves from the second airport at 11:00a heading south towards the destination plane A originally departed from. Plane A travels at 720km/h, and plane B, slowed by a headwind, travels at 640km/h. Where do the planes meet? At what time? Given: Δy= 1286km Vp1 = 720km/h Vp2 = 640km/h Δt = ? ?? 2. Not quite sure yet. 3. I tried to draw a graph but it, unfortunately, got me no where.