An aeroplane is moving at an average speed of 120 km/hr. A passenger fired a gun and he heared the echo of the sound of gunfiring after 3 second. If the speed of the sound in air is 330 m/s at ordinary temperature, calculate the height of the aeroplane.
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Explanation:
To calculate the height of the airplane, we can use the formula:
Distance=Speed×Time
The total distance traveled by the sound is twice the height of the airplane because it goes up and comes down.
Given:
Total distance=2×v×t
Total distance=2×330m/s×3s
Calculate the total distance and then find the height of the airplane using the formula:
Height= Total distance÷2
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