An aircraft is flying at a height of 3400 m above the ground. If the angle subtended at a ground observation point by the aircraft positions 10 s apart is `30^(@)` , what is the speed of the aircraft ?

Explanation

To solve the problem, we need to find the speed of the aircraft based on the given information. Here’s a step-by-step solution:

### Step 1: Understand the Situation
The aircraft is flying at a height of 3400 m above the ground. The angle subtended at a ground observation point by the aircraft's positions 10 seconds apart is 30 degrees.

### Step 2: Visualize the Problem
Let's denote:
- Point A: the position of the aircraft at the first observation.
...