Question

a man stands at a distance of 255 m from a cliff. he fire a gun and he is the Echo after 1.5 seconds.Calculate the speed of sound in air.

Answer 1

Distance between man and cliff-top 255m

Time 1.5 s

V= 2× distance/time

V= 2×255/1.5

V= 340m/s

Answer 2

┏─━─━─━─━∞◆∞━─━─━─━─┓ ✭✮ӇЄƦЄ ƖƧ ƳƠƲƦ ƛƝƧƜЄƦ✮✭ ┗─━─━─━─━∞◆∞━─━─━─━─┛

➧ d ➾ 255 m
➧ t ➾ 1.5 sec
➧ v ➾ ?

❱ v = 2d / t

v = 2 × 255 / 1.5
  ➾ 340 m/s ...✔

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