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Question

Tinku dropped a stone into a very deep well. He hears the sound 6.53 s after he dropped the stone. Find the depth of the well. Take acceleration due to gravity, g =10 m/s and vsound = 340 m/s.

In the above question how to solve equation √D/5 + D/340 = 6.53


Solution

√(D/5) + D/340 = 6.53
√(D/5)^2=((6.53)-(D/340))^2
D/5=(42.6409)+(D^2/115600)-(D*0.0384)
0.2384*D=42.6409+(D^2/115600)

D=180m

Physics

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