Question

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

Answer 1

Explanation:

Time of echo= 0.5 sec

Velocity of sound = 340m/s

Distance = (340x 0.5)/2

Distance (speed-time)/2

Distance = 170/2

Distance= 85 m

Answer 2

Hi there!

how are you

here's ur answer:-

Here,

Distance = 170m; Velocity of sound = 340m/s;

Time = (2×dist.)/speed

time = 2×170/340

t=340/340

t=1sec.

answered by YASHAWINI.

in.stall Aat.magya.n