Question

A girl standing 150 m in front of a tall building fires a shot using a starting pistol. A boy standing350 m from the girl hears two bangs I s apart From this information what is the speed of sound in air?(a) 300 m/s (b) 350 m/s (C)500 m/s (d) 650 m/s`​

Answer 1

Answer:

option c is right answer

Explanation:

please mark brianliest answer

Answer 2

Given:

The difference in time between the two bangs is 1 s.

t2 – t1 = 1

we know that

$\frac{distance }{time}=speed$

so $time=\frac{distance}{speed}$

$\frac{d2}{v}- \frac{d1}{v}=1$

multiply both side by v

d2 - d1 = v

Where v is speed of sound in air.

d1 = 350 m

d2 = (150 × 2) + 350

     = 650 m

so v= d2 - d1

v=650 - 350

v= 300m/s

The correct option is "a"

Hence the speed of sound is 300m/s