Physics · 2022
JEE Main · 28 July 2022, Shift 1 · Q34
A balloon has mass of 10 g in air. The air escapes from the balloon at a uniform rate with velocity 4.5 cm/s. If the balloon shrinks in 5 s…
A balloon has mass of $\displaystyle 10$ g in air. The air escapes from the balloon at a uniform rate with velocity $\displaystyle 4.5$ cm/s. If the balloon shrinks in $\displaystyle 5$ s completely. Then, the average force acting on that balloon will be (in dyne).
Official answer
(2)
$\displaystyle 9$
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JEE Main 2022 Physics question, with the answer from NTA’s final answer key. Where our answers come from.