Physics

Problem

A boy claps his hands and hears the echo from a distant cliff after

2.0\,\text{s}

. Taking the speed of sound in air as

340\,\text{m\,s}^{-1}

, find the distance of the cliff from the boy. a)

170\,\text{m}

680\,\text{m}

340\,\text{m}

330\,\text{m}