Question

A rock is dropped from a sea cliff, and the sound of it striking the ocean is heard 2.9 s later. If the speed of sound is 340 m/s, how high is the cliff?

Answer 1

h = 493 m

Step-by-step explanation:

Given that,

A rock is dropped from a sea cliff, and the sound of it striking the ocean is heard 2.9 s later.

The total distance covered by the rock is 2d. We know that,

Speed = distance/time

`v=(2d)/(t)\\\\d=(vt)/(2)\\\\d=(340* 2.9)/(2)\\\\d=493\ m`

So, the height of the cliff is equal to 493 m.