A man fires a gun towards a hill and hears its echo after `5 s`. He then moves `340 m` towards the hill and fires his gun again. This time he hears the echo after `3 s`. Calculate the speed of sound.

A man fires a gun and hears its echo after 5s. The man then moves 310 m towards the hill and fires his gun again. If he hears the echo after 3 s, calculate the speed of sound.

A soldier fires a bullet towards a fort-wall and hears the first echo after 2s. He moves a distance of 85m towards the wall, fires a bullet and hears the echo after 1.5 s. The velocity of sound is

A man standing in front of a vertical cliff fires a gun. He hears the echo after 3 s. On moving closer to the cliff by 82.5 m, he fires again and hears the echo after 2.5 s. Find : the speed of sound.

A man standing in front of a wall produces a sound and hears an echo after 3 s. He walks .X. m away from the wall and produces the same sound. Now he hears an echo after 5.25 s. Calculate distance he walked away from the wall. (Speed of sound in air is 340 m/s)

A man standing in front of a vertical cliff fires a gun. He hears the echo after 3.5 seconds. On moving closer to the cliff by 84 m, he hears the echo after 3 seconds. Calculate the distance of the cliff from the initial position of the man.

A man standing at some distance from a cliff hears the echo of sound after 2s. He walks 495 m away from the cliff. He produces a sound there and receives the echo after 5s. What is the speed of sound?