A small hole is made at a height of 4m from the bottom of a cylindrical water tank the length of water column is 16m. Find the distance where the water emerging from the hole strikes the ground.
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a
103m
b
203m
c
83m
d
123m
answer is C.
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Detailed Solution
Range = velocity efflux × time of descent. v=2g(H−h)=2g(16−4)=2g×12=24g t=2hg=2×4g ⇒R=vt=24g×8g=192=16×12 R=64×3=83