An aeroplane leaves an airport and flies due north at a speed of 1000 km per hour. At thesame time, another aeroplane leaves the same airport and flies due west at a speed of1200 km per hour. How far apart will be the two planes after hours?

Question

Philoid · Accepted Answer

Distance travelled by the plane flying towards north in = 1,000 *

= 1,500 km

Similarly, distance travelled by the plane flying towards west in = 1,200 *

= 1,800 km

Let these distances be represented by OA and OB respectively.

Applying Pythagoras theorem,

Distance between these planes after, AB =

= ( km

= km

= 300 km

An aeroplane leaves an airport and flies due north at a speed of 1000 km per hour. At thesame time, another aeroplane leaves the same airport and flies due west at a speed of1200 km per hour. How far apart will be the two planes afterhours?