a stone is falled from a tower of height of 500 m into a pond water. When did we hear the sound of the stone, contact with water from the tower. If velocity of sound is 340m/s and accelaration of gravity is 10 m/s2

Answer 1

h = 0.5g*t1^2 = 500 m.
5t1^2 = 500.
t1^2 = 100.
t1 = 10 s. = Fall time.

h = Vs*t2 = 500.
340*t2 = 500.
t2 = 1.47 s. To travel 500 m.

t1+t2 = 10 + 1.47 = 11.47 s. To hear the
sound of the stone.

Answer 2

The ques seems not to be so complicated as henry did but it needs to some mind work and smartness oh well i got answer it's approx. 11.5