Question

if a stone is dropped in a well and the sound of splash us heard after 2.056 second.if the the value of g=9.8m/s^2.find the depth of well.take speed of sound=350m/s

Answer 1

Answer:

6250 m

Explanation:

u = 0 m/s

v = 350 m/s

a = g = 9.8 m/s^2

s(dis.) = ?

So, we apply the equation v^2 - u^2 = 2as

=》(350)^2 - (0)^2 = 2(9.8)s

=》122500 - 0 = 19.6s

=》122500 = 19.6s

=》122500/19.6 = s

=》6250 = s