then the speed of the engine is:

Sahay Sir > Question Answers > then the speed of the engine is:
An engine approaches a hill with a constant speed. When it is at a distant 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:
15
Sep
An engine approaches a hill with a constant speed. When it is at a distant 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: An engine approaches a hill with [...]
Posted in: Cengage NEET by C.P Singh , Chapter 17 - Sound Waves , Part 1 ,
Tags: An engine approaches a hill with a constant speed. When it is at a distant 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: ,