Physics · 2009
NEET 2009 · Prelims · Code A · Q14
A body of mass 1 kg is thrown upwards with a velocity 20 m / s. It momentarily comes to rest after attaining a height of 18 m. How much energy is…
A body of mass $\displaystyle 1$ kg is thrown upwards with a velocity $\displaystyle 20 \mathrm{~m} / \mathrm{s}$. It momentarily comes to rest after attaining a height of $\displaystyle 18 m$. How much energy is lost due to air friction ? ($\displaystyle g=10 \mathrm{~m} / \mathrm{s}^2$)
Official answer
(2)
$\displaystyle 20$ J
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NEET (UG) 2009 Physics question, with the answer from NTA’s final answer key. Where our answers come from.