Question

A stone is dropped from the top of Tower 500 m into a pond of water at the base of Tower. When is the splash heard at the top? ( Given g=10m\s² and speed of sound=340m\s

Answer 1

given height,s=500m
g=10
speed of sound =340
on analysing we get that we have to find time period
first analyze the data and apply different formulas for it then see which formula suits the best.
the formula that should be used here is
s=ut+1/2at^2
u=0,
500=0+1/2x10xtxt
we get t=10 sec
now the time for the resound=500/340=1.47 sec
total time=10+1.47=11.47 sec