A person fires a gun while standing at a distance of 850m from a build – InterviewSolution

InterviewSolution

1.

A person fires a gun while standing at a distance of 850m from a building. If the speed of sound is 350ms, calculate the time in which the person hears an echo of the gun flte.

Answer»

Speed of sound in air = 350ms^-1

∴ Time in which echo is heard, t = 2d/v = (2 x 850m)/350ms^-1 = 4.86s.

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