Question

iv)
A girl stands 170 m away from a high
wall and claps her hands at a steady rate
so that each clap coincides with the echo
of the one before.
a) If she makes 60 claps in 1 minute,​

Answer 1

Answer:

340 m/s

Explanation:

Given A girl stands 170 m away from a high

wall and claps her hands at a steady rate

so that each clap coincides with the echo

of the one before.

a) If she makes 60 claps in 1 minute,what is speed of sound?

We know that  

According to question a girl makes

60 claps in 1 minute.

So 1 clap will be in 1 second.

We know that we need to find distance of object from source of sound.  

So 2d = v x t

Or v = 2d/t

    v = 2 x 170 / 1

    v = 340 m/s