Question

To approximate the height of a well, martha and john drop a heavy rock into the well. 8 seconds after the rock is dropped, they here a splash sound caused by the impact of the rock on water. what is height of the well if the speed of sound is 340 m/s​

Answer 1

Answer:

height is 1360 m

Explanation:

v=340

u=0

t=8

s= ?

a=42.5 by 1 equation of motion

by 3 equation of motion

v² =u²+2as

v²-u²=2as

(340)² -0 =2 ×42.5×a

115600= 85 ×s

115600÷85 =s

1360 metres =s