to find the velocity

Asked by  | 12th Sep, 2013, 07:25: PM

Expert Answer:

u = 0, t = 4 s, g = 9.8 m/s2.
 
We know that,
Thus, the depth of well is
 
We also know that,
 
Thus, the velocity with which the stone hits the well surface is

Answered by Romal Bhansali | 13th Sep, 2013, 10:13: AM

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