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CBSE Class 11-science Answered

to find the velocity
Asked by | 12 Sep, 2013, 07:25: PM
answered-by-expert 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 | 13 Sep, 2013, 10:13: AM

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CBSE 11-science - Physics
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