Question

A man standing 170m away from a hill fires a gun After how long will he hear the echo the velocity of sound =340/s

Answer 1

velocity / distance = time

so answer will be 340 / 170
= 2 S

AND TIME AFTER WHICH THEY HEAR IS 4 S

Answer 2

Hello friend

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d = 170m
velocity of sound = 340m/s

speed= 2*distance/time

340=2*170/time

Time=340/340

t=1

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hope it's help u