A helicopter's speed increases from 30m/s to 40m/s in 5 seconds. What is the acceleration of this helicopter?
1 answer:
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So Neon ( Ne) is the correct answer.
Answer:
The distance is
Explanation:
From the question we are told that
The time interval between the sounds is k = 0.50 s
The speed of sound in air is
The speed of sound in the concrete is
Generally the distance where the collision occurred is mathematically represented as
Now from the question we see that d is the same for both sound waves
So
Now
So
=>
=>
=>
So