Answers

2016-02-29T18:28:48+05:30
S=ut+1/2at^2
500=1/2*10*t^2
1000=t^2
10s=t
This is the time taken by the ball to reach the surface of the water.
time take by sound to reach the top is given by:
s=v*t₁
500=340*t₁
1.47s=t₁
Therefore, the total time taken after the falling of the ball and then reaching the sound of splash to the top is (10+1.47)s=11.47s
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