Physics · 2016
NEET 2016 · 1 May · Code Y · Q128
A body of mass 1 kg begins to move under the action of a time dependent force F =(2 t i +3 t^2 j ) N, where i and j are unit vectors along x and y…
A body of mass $\displaystyle 1$ kg begins to move under the action of a time dependent force $\displaystyle \overrightarrow{\mathrm{F}}=\left(2 \mathrm{t} \hat{i}+3 \mathrm{t}^2 \hat{j}\right) \mathrm{N}$, where $\displaystyle \hat{i}$ and $\displaystyle \hat{j}$ are unit vectors along $\displaystyle x$ and $\displaystyle y$ axis. What power will be developed by the force at the time t ?
Official answer
From NTA’s final answer key for this paper.
(1)
$\displaystyle \left(2 t^3+3^{t^5}\right) \mathrm{W}$
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NEET (UG) 2016 Physics question, with the answer from NTA’s final answer key. Where our answers come from.