Physics · 2022
JEE Main · 27 June 2022, Shift 2 · Q33
When a ball is dropped into a lake from a height 4.9 m above the water level, it hits the water with a velocity v and then sinks to the bottom with…
When a ball is dropped into a lake from a height $\displaystyle 4.9$ m above the water level, it hits the water with a velocity $\displaystyle v$ and then sinks to the bottom with the constant velocity $\displaystyle v$. It reaches the bottom of the lake $\displaystyle 4.0$ s after it is dropped. The approximate depth of the lake is :
Official answer
(2)
29.$\displaystyle 4$ m
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JEE Main 2022 Physics question, with the answer from NTA’s final answer key. Where our answers come from.