guns are fired from a city at intervals of 10 minutes and the train was approaching the city with a speed of 72 kilometre per hour if sound Travels through per second at what interval of time the passenger of the train yours two successive sound
Answers
Answered by
2
In 30 sec sound covers the same distance as train in 10 min.
In 30 seconds sound covers 330*30=9900m=9.9 km, --> hence in 10 minutes train covers 9.9 km --> in 1 hr train covers 9.9*6 km= 59.4 km.
Similar questions