Question

11. An aeroplane leaves an airport and flies due north at a speed of 1000 km per hour. At the
same time, another aeroplane leaves the same airport and flies due west at a speed of
1
1200 km per hour. How far apart will be the two planes after 1 hours?​

Answer 1

Answer:

2200kms

Step-by-step explanation:

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Answer 2

Answer:

Step-by-step explanation:

The first aeroplane leaves an airport and flies due north at a speed of 1000 km per hr.

∴ Distance travelled in 1.5 hrs.

=1000×1.5=1500 km

Similarly, Distance traveled by second aeroplane,

=1200×1.5=1800 km

In △ABC,

BC is distance travelled by first aeroplane and BA is the distance traveled by second aeroplane.

Hence, applying Pythagoras Theorem,

AC^2=AB^2+BC^2

AC^2=1500^2+1800^2

AC=300$\sqrt{61}$km