The observer can conclude that the sound is moving away from them and that its speed is increasing.
<span>Science is orderly knowledge proven by experimentations.</span>
Acceleration due to gravity depends directly on the mass of Earth and inversely to the square of radius of Earth.
So when the body moves in a straight line the average velocity is equal to the average speed. average velocity would be equal to average speed when the total distance travelled equals the net displacement of a particle. this happens when a particle moves along a straight line in a fixed direction.
