Science, asked by abishnoi856, 1 year ago

نا مریل سا زبرلم
An engine is approaching a hill at Constant speed when
is at a distance of 0.9 km, it blows a whistle whose echo is
heared by drives after 5s. if the speed of sound is 340m/s
calculate the speed of the engine

Answers

Answered by anshy047

0

Answer:

MARK ME AS BRAINLIEST

Explanation:

21 m per sec

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