A) Acceleration\[{{E}_{y}}=2.5\frac{N}{C}\cos \left[ \left( 2\pi \times {{10}^{6}}\frac{rad}{m} \right)t \right.\]
B) Acceleration\[\left. -\left( \pi \times {{10}^{-2}}\frac{rad}{s} \right)x \right]\]
C) Acceleration \[{{E}_{s}}=0.\]
D) Acceleration = kx where \[2\pi x{{10}^{6}}Hz\]and a are all positive.
Correct Answer: B
Solution :
Key Idea Acceleration \[(g=10m{{s}^{-2}})\](displacement). \[\vec{F}\] \[\overrightarrow{r}\] \[\overrightarrow{\tau }\] \[\overrightarrow{r}.\overrightarrow{\tau }\ne 0\] Here, \[\overrightarrow{F}.\overrightarrow{\tau }=0\] \[\overrightarrow{r}.\overrightarrow{\tau }>0\]acceleration \[\overrightarrow{F}.\overrightarrow{\tau }<0\]
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