Physics · 2022
JEE Main · 28 July 2022, Shift 2 · Q2
At time t =0 a particle starts travelling from a height 7 z cm in a plane keeping z coordinate constant. At any instant of time it's position along…
At time $\displaystyle \mathrm{t}=0$ a particle starts travelling from a height
$\displaystyle 7 \hat{\boldsymbol{z}} \mathrm{~cm}$ in a plane keeping z coordinate constant. At any instant of time it's position along the $\displaystyle \hat{x}$ and $\displaystyle \hat{y}$ directions are defined as $\displaystyle 3$ t and $\displaystyle 5 \mathrm{t}^3$ respectively. At $\displaystyle \mathrm{t}=1 \mathrm{~s}$ acceleration of the particle will be
Official answer
(2)
$\displaystyle 30 \hat{y}$
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JEE Main 2022 Physics question, with the answer from NTA’s final answer key. Where our answers come from.