The echo of a sound is heard after 5 seconds. If the speed of sound in air be 342m/s, calculate the distance of the reflecting surface.

An engine approaches a hill with a constant speed. When it is at a distance of 0.9 km, it blows a whistle whose echo is heard by the driver after 5 seconds. If the speed of sound in air is 330 m/s, then the speed of the engine is :

A engine is approaching a hill at constant speed. When it is at a distance of 0.9 km , it blows a whistle, whose echo is heard by the driver after 5 s . If the speed of sound is 340 m//s , calculate the speed of the engine.

The echo of a gunshot is heard 10 seconds after it is fired. If the velocity of sound is 330 m/s, the distance of the surface which reflects the sound is

The echo of a gunshot is heard 10 seconds after it is fired. If the velocity of sound is 330 m/s, the distance of the surface which reflects the sound is

A man fires a bullet standing between two cliffs. First echo is heard after 3 seconds and second echo is heard after 5 seconds. If the velocity of sound is 330 m/s , then the distance between the cliffs is

The echo of a gunshot is heard 5 seconds after it is fired. Calculate the distance of the surface which reflects the sound. The velocity of sound is 332m/s.